Feb 27, 2025 · Does anyone know if an H&K full size mp5/sp5 9mm trigger group will interchange with the H&K 22lr version trigger group as in the internal parts? I'm guessing probably not but I'm curious.

Apr 29, 2025 · This seems like a ton of work to make a dress up kit around an AR fire control, barrel, and 22lr conversion kit. Would it be more efficient to work on building a super safety conversion for …

Nov 18, 2012 · The weapon would be overbuilt for running .22. But since the MP5/22 was designed around running .22, it would not be able to handle the forces involved with using 9mm. Even if you …

Jun 26, 2022 · I wouldn't expect MP5 or HK build quality. This is an Umarex product. Looking at pictures, the receiver looks like some cast aluminum or potmetal most likely. Will basically be about a half-step …

Jun 23, 2017 · Since HK doesn't manufacture the A2 stock for the HK MP5 .22lr anymore, I bought a real HK MP5 A2 stock and modified it to fit my .22lr rifle. I took my dremel and cut some extra …

Sep 10, 2024 · I'm aware of the Lee Sporting options but was curious if you guys think a FRT will become available that uses the HK style trigger housing and/or pack?

Feb 7, 2023 · With all the brace ban BS I need a solution for my HK .22 mp5 pistol. Not all factory stuff plays nice with the .22 version. Hk doesn’t sell the a3 collapsible stock separately from the .22 SD …

Sep 6, 2022 · The MP5 22LR looks potentially interesting to SBR, and apparently those do have last-shot-hold-open. Are there any other ground-up .22LR arms out there, that could serve the roll as an …

Jan 31, 2022 · Firearm Discussion and Resources from AR-15, AK-47, Handguns and more! Buy, Sell, and Trade your Firearms and Gear.

Jan 14, 2024 · For some reason I want to say the MP5 .22 is/was slightly off from the real HK gun- I don't recall exactly what the differences are/were but supposedly some of the airsoft mounts would …