Geschützwagen 38 M für s.I.G.33/2
Cyberhobby/Dragon 1:35 Scale Kit #6429

Review by Terry Ashley


Cyberhobby/Dragon have waisted no time following up the release of the Sd.Kfz.138/1 Munitionswagen 38 M für s.I.G.33/2 (Cyberhobby kit #6471) with this full kit of the Geschützwagen 38 M für s.I.G.33/2 “Grille” which is basically the same kit as the Munitionswagen with the inclusion of a newly tooled 15cm s.I.G.33/2 gun.

The “Grille M” was the last of a series of vehicles produced mounting the 15cm s.I.G.33/2 starting with the s.I.G.33 auf Pz.Kpfw.I ohne Aufbau, (unofficially referred to as the “Bison”) which mounted the s.I.G.33/1 along with it’s carriage including wheels onto the Panzer IB chassis, the 15cm s.I.G.33 B Selbstfahrlafette which mounted the s.I.G.33/1 on a widened and lengthened Panzer II chassis through to the types built on the Pz.38(t) chassis, the Geschützwagen 38 M für s.I.G.33/1 “Grille H” and the Geschützwagen 38 M für s.I.G.33/2 “Grille M” based on the Pz.38(t) Ausf. M welded hull which is the subject of this kit.

The Kit:

As mentioned this kit is basically the same as the Munitionswagen kit with the inclusion of two new sprues for the s.I.G.33/2 gun that includes an aluminium barrel and slightly revised etched fret as well as having other parts left over from the Marder IIIM kits (#6468 and #6464). This does result in some duplication of sprue letters with the kit having two sprues C, K and N so you have to be careful when locating the parts that you are looking on the right sprue.

There are also quite a few duplicate parts from the other 38(t) kits such as 2 lower front hull plates, 2 glacis plates, 3 rear engine firewalls, 2 mufflers, 2 barrel travel locks, 2 sets of fenders and 4 rear engine deck doors as well as including the same front transmission/gearbox and engine parts as the previous kits.

Due to kits being basically the same this review will also be that from the Munitionswagen kit (#6471) with additional comments for the minor differences and the new 15cm s.I.G.33/2 gun.

The kit consists of about 680 parts in light grey plastic although many are indicated as not used with this kit, 13 in clear plastic (9 not used), a fret of etched parts, a length of wire cable and a bag of individual track links plus of course the instruction sheet and a small decal sheets.
Metal and Etched parts

Clear parts

Standard of moulding is again excellent overall with very few if any pin marks with the detail very clean and crisp due to the many plastic ‘nodes’ on the parts that do require a bit of care when removing but worth the effort for the cleaner parts. There is also virtually no flash or other blemishes present with the track links which are cleanly moulded with just the usual small moulding seams to be cleaned from all the parts which is normal for any kit.

A notable feature is the quite thin superstructure sides free of any pin marks along with details on both sides for a good appearance but the rear hull plate was warped a little in different directions in my kit due to the thinness of the flat panels but this should pull back into line as you glue to the rear of the lower hull tub and superstructure sides, but is something you will have to take care with. The superstructure front plate was also warped along the bottom edge due to the thin plastic and this caused some fit issues and you will have to straighten this before it will fit properly but more on that later.

Dimensionally the kit matches the 1:35 plans in the four references listed below almost perfectly with any discrepancies being well within accepted tolerances. There were again some discrepancies between the plans, notable the s.I.G.33/2 dimensions that make things a little tricky and as mentioned before is why you shouldn’t bet your house on a single set of plans without corroboration.

Lower Hull:

The lower hull tub has the floor and both sides moulded together as a conventional tub with well defined detail on underside and both sides of the hull walls for the forward compartment and inner final drives and includes revised upper walls for the Marder M/Grille M hull as well as cut-outs for the engine intakes.

Detail on the tub exterior is very good with rivet detail on the bottom and sides as well as the idler mountings included with separate final drive covers and return roller mountings.

The new separate front plate is in two parts to not compromise the detail on the upper and lower sections with the fit very good as is the separate tow hooks which have the correct profile but you should not attach this plate to the hull until the interior is done or there may be problems fitting the transmission/gearbox if you do attach the front plate now.

On the inside are two part final drive fittings and front brackets which fit snugly to the inner side walls with the transmission/gearbox having crisp details included for all the basic detail including the cooling ribs on the gearbox and textured drive shaft cover. The driver’s controls are in one piece and fairly basic but there are a couple of detailed etched sets available if you want to dress these up a bit?

There are still no driver’s foot pedals included and the three part seat is also very basic and there is also no driver’s instrument panel that should fit to the underside of the upper hull plate. As you can only see the interior through the transmission inspection hatch or the driver’s hatch if left open not a lot of the interior is visible in any case but if you’re going to include an interior providing all the main parts or none at all would seem the appropriate thing to do?

Once the transmission/gearbox is assembled this should be fitted inside the hull and you will have to flex out the front sidewalls slightly to insert the pins on the drive shafts (parts D46) into the final drive fittings (parts D55/56) and this is the reason for leaving the front plate separate as you won’t be able to flex the sidewalls to fit the transmission with the front plate in place.

The instructions show to fit the engine bulkhead inside the hull before the engine but if you do this it is a little difficult to fit the engine to the two floor mounting pins and it’s better the fit the engine first and then the firewall.

The kit has the full Praga TNHPS/II 6 cylinder petrol engine from the 38(t) Ausf.G kit with the rear radiator and associated fuel tanks to provide all the basic structures for a full engine compartment.

The engine block is in two halves with separate top rocker cover and a separate front bell housing with detailed fly wheel inside which is completely hidden after assembly but shows nice attention to detail. The detail on these parts is adequate but also a little plain on some when compared to photos such as the rocker cover but should be okay when looking through the open engine hatches.

Added to the engine are numerous accessories such as the alternator, carburettor and exhaust manifolds with the fit of the parts quite good overall and thankfully Dragon have fixed most of the instruction bloopers for the engine, but one still remains.

The location of the large exhaust manifold (part D16) is incorrect and it should be mounted above the lower intake manifold (part D23), not below as indicated.

Some of the smaller items are a little vague in their location and careful study of the instructions and pictures of the assembled engine will help to get things in the right place. The large air cleaning sort of “hangs” out in mid air but thankfully the locating of the parts is quite precise and so long as you make sure it is sitting at the right angle as the glue dries there shouldn’t be any problems.

You can of course finish off the engine by adding the wiring and plumbing from fine wire or sprue.

At the back is the large radiator with four parts, two for the radiator itself giving you nice mesh detail on one side only, the large fan coaming and a fairly basic later style fan moulded and not the usual fan on the 38(t) Praga engine. But this is not a big issue as the fan is all but hidden after assembly on this model even with the top engine hatches open.

There is a separate exhaust pipe that joins to the external exhaust pipe as well as the side mounted fuel tanks and again you can add the fuel lines and wiring to finish off. You should also fit the fuel tanks, especially the right side tank before adding the engine as you will not be able to fit this after the engine is in place.

After adding the fully painted fuel tanks and engine/radiator assemblies to the lower hull you can then fit the forward bulkhead/firewall which fit neatly over the engine flywheel with the exhaust pipe meeting the hull wall, don’t fit this into the hole in the sidewall as this must be left open to fit the long external exhaust pipe later in the assembly sequences.

The rear bulkhead/firewall also fits neatly into the hull tub and this has a separate round engine inspection hatch and right side intake detail which is visible as this bulkhead forms the front of the rear fighting compartment.


Each suspension bogie is made up of the hull mounting, two separate swing arms and the leaf spring unit and has a face plug that allows the arms to move but the springs are glued in place so there is only downward movement possible for the wheels after assembly. The fine mould lines on the springs are easy to remove with the bogie units fitting together as you attach to the hull side as the spring locating pin is on the hull side and also used to locate the bogie mounting plate.

The wheels are the correct size with fine detail between the rim and rubber tyre and have the correct number of rim bolts (32) on both sides of the wheels with the hub bolts nicely defined and these simply glue to the axle stubs on the swing arms.

There are again two sets of drive sprockets provided; the sprockets with the 8 lightening holes around the outer rim and solid sprockets without any lightening holes but with nicely done inner hub rib detail included.

The perforated sprockets are the same as from the Marder IIIM w/Stadtgas and Munitionswagen kits meaning the lightening holes in the sprockets are still oversized but as the majority of pictures of the Grille M have the solid drive sprockets this is not an issue with this kit.

Included are two sets of idler wheels, one with round lightening holes and the other with the teardrop shaped holes. The instructions show to use the round lightening hole idlers which again is what most reference photos indicate is correct.

The idler axle allows a little movement of the idler position so it’s best not to glue this in place until fitting the tracts for a better fit.

The return rollers have nice hub detail as well as the “continentau” embossing on the side wall but it’s a little oversized if you want to get real picky but will look good when painted and weathered to highlight the embossing, and it’s easy to convert the ‘u’ to an ‘l’ if you want to do this.


These are provided as individually moulded “magic tracks” which have nice detail including minute casting numbers on the edge of each link with no cleanup required.

The tracks are designed to be glued together and are not workable and you will have to incorporate the track sag as you glue the lengths together. By gluing a length together and letting the glue “go off” you can them add it to the suspension and add the curve around the drive sprockets and idlers as well as the track sag easier.

The assembled track runs look very good but if you prefer workable track links which take care of the track sag themselves then those from WWII Productions would be a simple alternative.

Individual magic track while not workable looks very good when fitted to the model
Note: the tracks and sprockets shown are from the 38(t) Ausf.G kit but the tracks are the same for this kit.

Marder III HMarder III H

Upper Hull/Superstructure/Fenders:

The long one piece glacis plate from the Munitionswagen is used for this kit but the glacis for the earlier Marder IIIM is still included so make sure you use the correct part Q11 as indicated in the instructions. This has excellent rivet head detail with cut-outs for the separate welded driver’s hood and the engine inspection hatch which is a very snug fit to the glacis although the fit of the driver’s hood is a little loose so make sure it is lined up correctly before gluing.

Just a quick note on the assemble sequences as they show to add all the inner side panel details before fitting the panels to the hull for easier access and it does make things easier and the good fit of the side panels to the hull shouldn’t present any problems. You may wish to add the side panels before the internal details depending on your preferences due to fitting the slightly warped rear hull plate but this is a personal preference and no reflection on the kit assembly instructions.

On the front of the glacis is the two part Notek light which has etched parts for the mounting and light aperture and you can add this now to later to avoid any damage during the rest of the assembly.

The welded driver’s hood is nicely done with a single row of rivets along the lower right edge as there should be. There is no interior detail on the hatches and the real things have fairly substantial padding which you may want to add if leaving the hatches open?

The front visor port is also a separate part if you wanted to show open and the right side hull visor is also a separate part for better defined detail with the fit of the glacis to the hull tub being very good again not requiring any trimming to fit.

The barrel travel lock is made up of 5 parts and mounted behind the driver’s hood but there is an issue with this similar to those on the previous 38(t) travel locks in there should be a larger space between the bottom of the lock and the mounting plate (part Q31) but sits almost flush with the plate bolts.

Image showing the gap between lock and base plate not included with the kit parts.

Added to the engine compartment are the four separate doors which again can be shown open or closed as you wish and these also fit very snugly together to form the top plate over the engine bay but note also the rear doors have the lower gun shields fitted to them as well as small grab handles in plastic. A nice detail touch is the grab handles moulded on the forward two doors are hollow unlike the solid blobs we often see for grab handles and this adds good definition to the doors.

If you are going to have the engine doors closed you could use strips of plastic card underneath to join the doors together as this will make fitting them to the hull easier and also help with fitting the superstructure front plate as we will see below, but that is up to the individual to decide?

The two large superstructure side panels are superbly moulded with just the top row of rivets and bare lower sections applicable to the welded hull version and these again have nice detail on both sides without any hint of pin marks anywhere to contend with. They are also moulded a uniformly thickness or should that be thinness as the panels are commendably thin to avoid the bevelled edges seen on some previous kits and makes for excellent detail.

The right side panel also has the large engine louvers included which are again cleanly moulded and added to the sidewalls are the forward top and lower panels as well as etched intake screens for the underside of the engine intake overhangs which are the squared off welded type and all these parts fit together perfectly without the need for any trimming.

One minor thing to watch is the etched intake screens have their numbers transposed in the instructions and you should fit these on the opposite sides from that indicated, but it’s not a big deal as they are hard to see on the final model anyway.

The fit to the full side is also very good making for quick and easy assembly but watch as there is a little movement fore and aft and you should ensure they are aligned correctly and test fitting the rear hull panel in the process will ensure correct alignment.

The superstructure front plate for the Grille M and has a separate central hinged panel to cover the gun opening, this is again as it is with the Grille M and not just a plate added to blank off the opening on the Munitionswagen. The plate has a large hinge spring on the inside which is provided in plastic with adequate spiral detail considering it will be hard to see after assembly with the plate designed to spring upwards to cover the front plate opening as the gun is elevated.

The fit of the front plate is compromised by the warping present on my part which sees the lower edges slightly curved and the outer plate angles splayed more than they should, this is evident when first fitting the plate to the superstructure sidewalls as they simply do not fit. (see images)

You would need to straighten the lower edges and the outer panels can be pulled back into line when fitting the front plate but it did take a little manoeuvring to get the plate to line up correctly and this distracts from adding the other details as you would really have to address this issue first. Because of all this I found it easier to glue the engine access hatches firmly in place as mentioned above to give a firm footing for fitting the front plate.

With the engine doors and lower armour strips (parts M1/M20, M2/M21) glued into position you can then glue the lower edges of the front plate to the doors while also aligning the outer edges to the superstructure sidewalls and this did pull everything back into alignment as if there nothing had happened. There is a little extra work involved here and you should also be careful if you fit the additional equipment to the inside of the front plate before adding the plate to the superstructure that the panels have been straightened as pulling them back into alignment may be harder with the extra parts attached in not so. I fitted the plate without the extra gear so can’t say for sure if this would have an effect?

At the back is the large one piece rear hull plate with the upper hinged panel separate and while this is free of any pin marks with nicely defined rivet detail there is a little warping to deal with due to the thin flat moulding similar to the front plate. There is also a port cover missing from the lower rear plate next to the right tow hook bracket that will have to be added from plastic card.

To fit the rear plate I first glued the lower section including the tow shackle brackets (parts G40) to the lower hull tub to ensure correct alignment and this will then show the full extent of the warping but don’t get too excited at this stage. (see images)

The thinness of the plate helps to align the warping by first bending the panel back in line and attaching to the two hull tub mounting posts and then hold the outer sections against the side panels and glue in place. This worked well and only left some very small gaps around the mid plate join and lower hull that can be filled as you add the weld seams along the joins that are missing from the parts. The top sill was still slightly ‘wavy’ which can be aligned as you fix the rear plate folding hatch in place.

So what looks at first like a disaster works out quite well if you take your time to ensure you align each section on the plate as you go and as mentioned the thin plastic of the plate helps with the process. Also the amount of warping may well vary from kit to kit due to other circumstances so this may well not be an issue with other kits but I can only comment on the kit I have.

Also if you choose not to bother with the interior parts you should still add the forward engine bulkhead (part D47) as this ensures the hull sides are perfectly aligned for easier fitting of the glacis and engine deck doors.

Once the rear panel has been attached there is the rear two part exhaust muffler and long single pipe that runs from the side engine louvers to the exhaust and this slips into the side louvers to fit into the hole in the hull side which it does okay and may take a little manoeuvring to get in place but nothing dramatic.

There is also provided an etched heat shield for the muffler and this has to be bent to a curve to fit around the muffler and annealing the part by running through a candle flame until red hot and let cool naturally will make bending the curve much easier.

Also added to the rear plate are the tow hook and wire rope brackets with the wire rope from the metal cable included which makes getting a natural coil quite easy as well as having cleaner detail definition.

As with the previous 38(t) kits we have the perennial fender kink missing, looking at any photo of the Grille M, either the factory pilot models or serving production models will show a distinct fender kink but again the kit fenders are straight apart from a small kink at the rear to fit under the superstructure overhang. The locating ridge along the hill side is also straight but and it seems the straight fenders will remain in all 38(t) kits produced by Cyberhobby/Dragon so there is little point going on about it.

The fenders themselves are very nicely done with the strengthening ridges raised on the top and indented on the undersides without any locating holes for the pioneer tools and 3 part jack which are provided separate along with etched tool clips.

Included in the instructions are overhead plan views of the fenders showing the location of the tools as well as the distinctive 38(t) perforated storage box in plastic or etched brass to allow you to fit these in the right places due to the absence of the locating holes and this does make for a cleaner appearance overall. 

There are separate fender attachment brackets that fit to the hull side to add a little more definition but they are a little on the thick side and would be best replaced with etched items, the middle supports (parts G31/G32) are a little short and don’t quite reach the edge of the fender.

Fighting Compartment Interior:

The interior is the same as for the Munitionswagen with the inclusion of the s.I.G.33/2 gun and as mentioned above the assemble sequences show to add all the inner side panel details before fitting the panels to the hull for easier access and you can do this or add the inner details after assembling the superstructure due to the warping issues mentioned above, it’s up to you really.

The lower floor with nice tread plate pattern is first added (this can be slipped into place after the rear plate is attached if need be) with the rest of the interior being nicely fitted out with the large multi-part radio rack, gas mask case with etched brackets, 3 x 15cm ammo containers with the rounds moulded in place and some additional equipment boxes on the left wall.
The right wall has more 15cm ammo containers with the rounds moulded in place and there are also some empty containers provided if you want some variety as well as an MP40 rack and MG ammo boxes.

s.I.G.33/2 Gun:

The s.I.G.33/2 gun in the Grille M was different from that in the earlier Geschützwagen 38 M für s.I.G.33/1 “Grille H” most notably with the breech and has the mounting redesigned as a more compact unit doing away with the carriage parts with rear supports for the two recoil cylinders  (as did the Grille H).

The kit actually includes parts for two versions of the s.I.G.33/2 so there are duplicate breech assemblies, gun cradle and recoil cylinders so take care to use the correct parts for this kit. This also means another kit is coming from Dragon utilizing the s.I.G.33/2 gun but not the grille H as the extra parts are not applicable to the s.I.G.33/1 gun used in that vehicle.

There are many fine parts in the gun assembly that will need care while cleaning up and assembling as well as few things to watch for but you can build the gun in a series of smaller sub-assemblies and then bring all these together for the final assembly which makes things easier.

The aluminium barrel supplied is very well done and has the fine rifling included to a depth of 10mm. The most notable feature being the rifling is actually spiralled and nor just parallel grooves we often see for rifling in metal barrels and this makes for a very good appearance in this larger calibre barrel.

The gun breech is made up of 6 parts that fit together very well but there are the join lines between the two breech halves that must be eliminated to depict the breech correctly and also there is a small lip on the inner breech plate (part B14) that has the be shaved off for the breech block to fit in the closed position. Note this fine lip is on the side of part B14 facing rearward and not the locating ring on the forward side that fits into opening inside the breech halves.

The breech block lever on top of the breech should also be positioned differently depending if you fix the breech block open of closed so watch this detail also.

Detail on the main gun cradle is very finely and cleanly done with the cradle in three parts, the lower section and the two sides with the joins along the side edge which results in no central join seam that often detracts from artillery gun cradles and this design makes for a very clean cradle assembly.

There is a small trade off in that fitting the parts together is a little tricky as there are no locating pins (the parts are too fine for this) and holding them together as you glue with liquid cement is not easy. I used small pieces of masking tape to hold the parts in position for initial gluing to ensure they were in the right position but once glued together there is the top cover that fits inside the cradle sides. You have to ensued this is level with the sides but once glued in place the assembled cradle has excellent rivet detail on both sides and no annoying join seams or pin marks to deal with.

The two trunnion side panels and recoil cylinders go together without any problems apart from the elevation wheel assembly on the left side as the instructions are not at all clear where the parts go, notable part C7 which has no arrow at all indicating its location. I ended up assembling the remaining parts without part C7 and fitting these to the side of the left trunnion and then the position of part C7 became more apparent.

The main sight is made up of two clear and one grey plastic part and it is quite difficult cleaning up the clear parts as you can’t see what is detail and what is mould seam etc. very easily so take care here. Also note that if you are showing the gun in travel mode the sight is not fitted, this is the case for all artillery pieces unlike the numerous models we see this sights in place while being towed.

A couple of things to watch is part C16 fitted between the two gun mounting parts should be attached to the two small attachment eyes on the bottom of the cradle if the gun is in travel mode as the instructions don’t tell you this. When fitting the front cap (part S1) over the cradle I had to trim the cradle nose cap (part B7) for this to fit properly and the fit of the gun cradle between the two trunnion supports is quite loose and you may have to glue the gun in the desired elevation position.

The assembled gun is a very nicely done replica of the s.I.G.33/2 and this fits easily to the locating pin (part Q28) which was glued to the gun mounting cross beam earlier in the kit assembly and allows you to fully assembly and paint the main kit hull and the gun separately and bring together in the final assembly which will make assembly a lot easier.


The small decal sheet only has three balkenkreuz and two unit insignia with the painting guide showing three Grille M vehicles, two from 1.PzDiv. "LAH" and one Unidentified Unit and again a little more info with the markings wouldn’t go astray.

  • 1.PzDiv. "LAH", La Gleize, Belgium 1944
  • 1.PzDiv. "LAH", La Gleize, France 1944
  • Unidentified Unit, Eastern Front 1944
  • Dragon

These are the usual exploded view drawings but are very busy in places and can be confusing unless you study them very closely before any assembly but apart from a few miss-numbered parts there weren’t any real problems if the usual care is taken.


This is another overall well done kit of the later welded hull Grille M with just a few small issues carried over from the previous kit to contend with along the way. The kit is cleanly moulded with good fit of the parts generally apart from the warping on some of the thinner parts as mentioned above which is worse than it looks but does require a little more assembly time to get the result which distracts from the main game.

The interior (transmission/engine) is quite extensive but fairly basic in detail overall as with other Cyberhobby/Dragon 38(t) kits (see comparison here) but if you are building the model buttoned up you can leave out the interior and save a bit on assembly time leaving just the nicely done exterior and fighting compartment.

Some of the issues you may want to address are the weld seams around the lower rear hull, the missing port on the rear plate and the spacing of the barrel travel lock but the new s.I.G.33/2 gun is very well done with only a few small assembly issues to watch out for.

Highly recommended 8/10

I was going to add a brief comparison with the Allen Model Geschützwagen 38 M für s.I.G.33/2 but in all reality the two kits are from different eras and a comparison will only have one outcome.

Suffice to say that this new kit from Cyberhobby/Dragon is light years ahead of the Allen kit in terms of accuracy, detail and fit of the parts and will build into an excellent kit of the Grille M from the box.

See the Pz.38(t) subjects page for additional reviews of 38(t) kits and accessories.

The Sprues:

Click on thumbnails for larger view
Detail Images
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15cm sIG33/2 (sf) auf GW 38(t) "Grille" (Sd.kfz.138/1) Part 1: Ausf.M
Nuts & Bolts Volume 22
15cm sIG33 (sf) auf PzKpfw.1 Ausf.B &15cm sIG33 (Towed)
Nuts & Bolts Volume 19
Marder III & Grille
Wydawnictwo Militaria #175
ISBN 83-7219-155-7
Ground Power Magazine
#97 - 6/2002

GALILEO Publishing Co.,Ltd.
Artillerie Selbstfahrlafetten
Panzer Tracts No.10
ISBN 0-9708407-5-6

Thanks to my credit card for the review kit.

Page created August 31, 2008