COWCOW Stainless Steel Hammer Housing for Umarex / VFC Glock Series GBB Pistol Glock Fits in specific guns that

Fits in specific guns that require a larger brick type

Fully adjustable hop up

Uses standard M4 magazines and accessories

• Rail Handguard Length – 7 / 9 / 12 inch (with CNC Gas Block)

Material: Brass

COWCOW Stainless Steel Hammer Housing for Umarex / VFC Glock Series GBB Pistol Glock Fits in specific guns thatUmarex G Stainless Steel Hammer HousingHighlighted featuresFully CNC Stainless Steel ConstructionEnhance and smoothen the hammer & slide action, also improved durability. The strengthened structure can bear with the stronger hammer hit. For Umarex G series**Important Notice**Each pins, hole and parts need to be lubricated before installation. It may has a condition that your pistol cannot feed the BB bullet due to lightweight gas supply. You just