Pro-Arms Steel MOS Slide with Barrel for Umarex / VFC G17 Gen 5 GBB

Pro-Arms Steel MOS Slide with Barrel for Umarex / VFC G17 Gen 5 GBB Metal Construction Allows for the direct mounting of RMR optics Come With Outer Barrel Suitable For Umarex/ VFC G17 Gen5 Series Airsoft Gas Blow Back GBB Pistol