Glock 17 Gen 4 umarex full blowback

Glock 17 gen 4 umarex full blowback BB pistol. Takes standard 12g co2 cartridges and .177 caliber (4.5mm) steel BBs. This is an awesome glock 17 replica and is constructed essentially the exact same as the real firearm, aside from the obvious fact it shoots steel BBs.  Full blowback action and shoots at 320fps. 18 round drop magazine (and co2 cartridge housing) is included. All offers are welcome, asking 200$ OBO