Bruce of BB2K Airsoft got some good things to say about the licensed Umarex HK53 GBBR made by VFC... "The original Heckler & Koch HK53 is the compact version of the HK33 series. The combination of the compact design and the high penetration power was ideal for use in a number of special units at the time. The company VFC / UMAREX has taken on this classic and reproduced it as a GBBR Airsoft. I take a closer look at this successful 1:1 replica with you. A few real steel facts and a shooting test are of course also included. A big thanks to Ian McCollum from @ForgottenWeapons for this great intro."