ITP SAIGA 12K Shotgun Drum Magazine Conversion Kit V2 for Tokyo Marui SAIGA-12 SBS GBB Series, FDE

GBB shotguns run on a simple math problem: a standard magazine holds 7 to 9 shells, and a full-auto burst empties it in two seconds. You're either reloading constantly or carrying a handful of heavy tubes. The ITP SAIGA 12K V2 solves that by converting your Tokyo Marui SAIGA-12 to accept large-capacity drum magazines.

What the conversion actually is. This is not a gun—it's a receiver and feed system that replaces the SAIGA-12's original gas magazine well. You mount compatible drum magazines to it (sold separately), and it feeds 50+ rounds into your Marui SAIGA-12. The V2 revision adds an HPA valve adapter, so you can run the whole system off an external air tank instead of green gas. That means consistent output across temperature swings and no mid-game gas swaps.

What you need to make it work. The kit ships with the HPA valve adapter and the drum conversion hardware. You supply the drum magazine itself. You also need shotshells for your SAIGA-12. If you don't already own a compatible drum, factor that into your budget.

Externals and fit. The housing uses 6061 aluminum and reinforced industrial plastic, so it's light enough to not turn your SAIGA into a brick. The FDE finish matches modern tactical builds. Installation requires disassembling the SAIGA-12's magazine well and fitting the conversion—expect to spend time with Allen keys and consult a guide specific to the SBS GBS platform.

What this is not for. This is a support-style upgrade for players who want sustained fire from a GBB shotgun. It's not a lightweight CQB solution, and it won't work on AEG shotguns or other GBB platforms beyond the Tokyo Marui SAIGA-12 SBS series.