The VFC HK UMP .45 Gas Blowback Rifle is unboxed and reviewed in this video by Jaeger Precision. It is the first-time for him to own a gas-powered UMP, chose the more iconic .45 version. He notes the rifle's mostly polymer construction, loud blowback, and lightweight feel. The rifle shoots at 1.4 joules with .25g BBs, and the magazines hold 25 rounds. He is impressed with its out-of-the-box performance, particularly its quick firing modes and satisfying recoil.