Griffin Armament Primo Low Profile Gas Block AR-15, LR-308 .750" Steel Nitride

Griffin Armament Primo Gas Block low pro. 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 builders the option of having a military style secured gas block. A 1/8 inch carbide drill bit and three ton press are recommended for pinning. Knurl grip cup pointed fasteners ensure a secure attachment to host barrel. The PRIMOs pre-drilled hole helps locate the drilling operation on pre-dimpled barrels for fixture free installation. 416R Crucible Alloy Steel. QPQ Nitride finish. .750 inch gas block diameter compatible. Low profile design. Included splined pin. Knurl grip - cup pointed fasteners. Inlcuded hex key. Included gas tube roll pin. Pre-drilled for ease of barrel pin installation. Specifications for Griffin Armament Primo Gas Block 416R Crucible Alloy: Manufacturer: Griffin Armament Fabric/Material: 416 Crucible Alloy Steel Gas Block Journal Size-Diameter: .750 in Condition: New Package Contents: Griffin Armament Primo Gas Block 416R Crucible Alloy Griffin Armament GAPGB: Primo Gas Block (low pro)