Dynamic Precision Enhanced Bolt for Umarex (VFC) G17 GBB (Type B)

Dynamic Precision Enhanced Bolt for Umarex (VFC) G17 GBB (Type B) Metal Construction ( Lightweight, rugged and durable ) Design For Upgrade The Original Parts More Durable Suitable for Umarex (VFC) G17 Series Airsoft Guns Gas Blow Back GBB Pistol