Griffin Armament Primo Gas Block low pro GAPGB. 750 inch. ID block made from nitrided 416R crucible alloy steel. The block has two provisions for mounting set screws and / or pinning. The included splined pin allows qualified gunsmiths and experienced...

In stock
ShipAmount $0.00
RevType 2
Manufacturer Griffin Armament
Sku GAPGB
Identity 7785697750