Internal Sponsons Conversion Kit

(17 customer reviews)


Resin conversion kit for creating internal sponsons, compatible with unassembled 28-32mm tabletop miniature tanks such as the Leman Russ Tank (shown only for example). Watch the installation video guide. Additional details at bottom.

When available, miscast items are sold at a reduced rate. See the Kit type dropdown.

Orders are usually shipped within 2-3 working days but please allow up to one working week should your order need to be cast up.

ALSO AVAILABLE: Upgrade your sponsons with the Internal Sponson Covers which allows you to run your tank with or without sponsons, or the Sponson Weapon Mounts which customise the look of your tank even further.

SKU: #PPISCK-V2 Category:


6 part resin kit to convert one tank with a left and right internal sponson, please note this kit is recommended for advanced hobbyists. Conversion kit adding internal sponsons to your tanks, suitable for unbuilt Leman Russ Battle Tanks in Warhammer 40k and Horus Heresy, along with other scale model tanks.

Watch the installation video guide. The kit is now in v2 with improved frames, which are studier and have less cleanup required than those shown in the video.

Will this kit work with the new Solar Auxilia Leman Russ Strike Tank?

Currently I haven’t got hold of the new tank to test out, but in theory it should be compatible. Just adjust the measurement points if needed to ensure one of the protruding hatches is fully removed.

Can I get this as an downloadable STL?

No, this kit is not 3D printed but sculpted using traditional methods and then cast in resin using a silicone mould. As such, as digital STL for this kit does not exist.


Contains fragile parts that must be handled with care. Resin kits should be washed in warm soapy water before use, some work may be needed to remove mould lines and fill in small air bubbles. If you need help you can follow the Beginners Guide to Resin.

Resin components may vary in colour. Supplied unassembled, unpainted. Pressure cast for improved quality. Designed and sculpted by Philip Spence, hand cast in the UK.


This is not an official Games Workshop or The Warhammer 40,000 product. Photographs of existing kits are shown only for scale and compatibility. Leman Russ, Forgeworld, Space Marines, The Imperialis Militia, Solar Auxilia, The Horus Heresy, the Warhammer 40,000 name are either ® or ™, and/or © Games Workshop Limited, variably registered around the world. No challenge to their status intended. All Rights Reserved to their respective owners. Choking hazard. Not meant for children 16 years or younger.

Additional information

Weight 8 g
Dimensions 3.2 × 1.1 × 1.9 cm
Number of parts



Polyurethane Resin

17 reviews for Internal Sponsons Conversion Kit

  1. Andrew (verified owner)

    Purchased a few of these for my DKoK army Russ’ and absolutely love this kit. It’s relatively easy to add to the miniature with a little guidance from the YouTube tutorial and the end result is a fantastic looking miniature.

  2. Stu (verified owner)

    Great kit, looks great and relatively straightforward to install. Would recommend the installation tutorial the first time you do it, its a great walk through of the process. Have two russes done and two to go.

  3. Mario Rabistyng (verified owner)

    I’ve postponed doing a Krieg army until these came out, now I have 3 sets on my Alpha pattern LRBTs. It’s an elegant solution in a grimdark universe, that will make your tanks stand out and avoid your Russes to look like shoeboxes or bricks with smaller bricks sticking to their sides. I’d highly recommend following the tutorial that Philip prepared in YT as measurements are spot on, and if you are skilled on it and have access to a rotary tool the whole process is super simple and will take you less than 5 minutes.

  4. Keith B. Miller (verified owner)

    This conversion was an excellent addition to my Leman Russ tank, the parts were crisply moulded and clean up and fitting straight forward. I always disliked the look of the external sponsons but this made for a much sleeker vehicle.

  5. Andrew M (verified owner)

    A great conversion kit, well cast and really enjoyed installing the sponsons onto a Leman Russ. At first it felt quite daunting, but I followed the video tutorial which made the whole process really simple! Definitely recommend this kit. Will be ordering again in the future!

    Thank you!

  6. amakovkin (verified owner)

    Great kit, very professionally done. YouTube tutorial covers everything you need to know. Takes some skill overall but looked great finished. It looks very natural when completed. Great detail in rivets. First assembly a little slow as I was learning but 2nd and 3rd assembly were very fast and easy. I will recommend this for sure.

  7. Pedro Hernandez

    Fantastic little kit, easy enough to install and looks great!

  8. Colin (verified owner)

    Don’t be like me and install them into an already made Russ, it works but it’s harder. Great kit and the look is awesome

  9. Tom Burke (verified owner)

    Kit was easy to install and looks amazing on my Leman Russ, highly recommend!

  10. Jonathan Bellew (verified owner)

    Absolutly love them, got 6 sets for my krieg mars leman russes and sadly only have one finished the backlog of 130 infantry definitely come first. But the kit was easy to install and gives my krieg tank a slimmmer more unique profile. Already used it in a local tourny and everyone askes me how i did it. Thank you they are easy to assemble and very appealing to the eye.

  11. Valentin (verified owner)

    A really good kit with greats explanations on the youtube video. I recommand it if you want to personalize your Leman Russ easily.

  12. Kevin P (verified owner)

    Great Kit, good quality, easy to install following the you tube tutorial.

  13. LonghunterCO

    Purchased 3 kits for my Catachan Jungle Fighters. Kit installed without a hitch and they looks great. If that wasn’t enough they have the added bonus that I can easily get more tanks in my transport cases (vs. those that have the GW sponsons on them). Get these and put something unique on your gaming table.

  14. Mike (verified owner)

    This kit is rad. It requires a bit of advanced skill to convert but totally worth the effort.

  15. Steve (verified owner)

    Great kit, makes my Leman Russ’s Look so much sleeker. Easy to fit, but made even easier by instructional videos on YouTube! I will by buying these for all my tanks.

  16. TinyTim

    I was bought one of the kits as a gift. Really well packaged and a great quality cast.

    As I’m brand new to the hobby I have never done any conversion work before however I followed the YouTube tutorial which made it really simple!

    Would definitely recommend and use again in the future, thanks Phil!

  17. Karl BOAK (verified owner)

    A lovely kit, well thought out and nicely made. Even though I acquired one of the ‘seconds there were no issues with these and even added a bit of character to the vehicles.
    Definitely recommend them.

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