Description
VFC Umarex H&K UMP 45 GBB A5 The Patent Pending Quick Change 150mm threaded inner barrel color arctic BBA2100000006372 Colour:Gold The Patent Pending Quick Change mechanism allows a fast change of cartridges and the integrated multistage expansion chamber prevents liquid CO2 from reaching the regulator dramatically improving the consistency and making it safe to use with standard regulators The newest iteration to the BLU line of pistols features an updated brass backstrap and magazine release