Finished my gas op x25 a few weeks back but still haven't taken it to the range. Figured I would get the blowback done as well, and take them both. This is AK-Builder flat, AMD 65 based pistol trunnion, AK74 front trunnion, EOD bolt/carrier and magwell, as well as a bunch of crap laying around the shop. Plus I put an old copy of an early M16 3 prong flash suppressor on it, just because the barrel looked so plain. She's ready to test fire. Cycles beautifully by hand.