UMP40.3gp
177 views · Published 25 October 2011 · 0:23 · Indexed 22 October 2026
Channel: Liquid_Profanity · 2011 · Science & Technology
Test firing an H&K UMP .40S&W This is not the classic roller delayed blowback operation like the MP5 series It is simple blowback like most other submachine guns on the market. This SMG is growing on me, initially I didn't like it, however the more I shoot them the more I like them; though I still prefer the MP5 platform, much smoother to shoot overall.
