German HK Semi UMP in 9 mm
This guide details the field stripping process for a 9mm UMP conversion, likely based on an HK USC. The process involves removing a single takedown pin, hinging down the trigger pack, and then extracting the bolt and recoil spring after partially folding the stock. The video emphasizes that these conversions are permanently modified for semi-automatic fire. The presenter, with experience in firearm modifications, guides viewers through the simple maintenance procedure.










