Umarex Glock 17 Gen 3 Original Copper Output Valve (# G17M-04)

Umarex Glock 17 Gen 3 Original Copper Output Valve (# G17M-04) Metal Construction Design For Replace the Original Parts Suitable For Umarex (GHK) Glock G17 Series Airsoft Gas Blow Back GBB Pistol Airsoft Guns