Griffin Armament Primo Gas Block Low Profile, .750" Journal, Black Nitride

PRIMO GAS BLOCK .750″ 416R

The PRIMO Gas Block is a low profile billet machined, .750″ 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" carbide drill bit and three ton press are recommended for pinning. Knurl grip cup pointed fasteners ensure a secure attachment to host barrel. The PRIMO’s pre-drilled hole helps locate the drilling operation on pre-dimpled barrels for fixture free installation.

SPECS

• 416R Crucible Alloy Steel
• QPQ Nitride finish
• .750″ gas block diameter compatible
• low profile design
• included splined pin
• Knurl grip – cup pointed fasteners
• included hex key
• Included gas tube roll pin
• Pre-drilled for ease of barrel pin installation