The fully licensed Umarex Glock 17 Gas Blowback Pistols OEM by Vega Force Company (VFC) are in stock now at WGC Shop. This includes the Gen 4 version which is the hot seller. These are made of Aluminium Alloy and Nylon reinforced Polyme. Muzzle velocity is 310-330fps on 0.2g BBs with Top Gas.