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Griffin Armament PRIMO Gas Block

Posted on May 17th, 2016 by ar15news

Griffin Armament continues to pump out the new products on a consistent basis. After the recent release of their new Griffin Armament AR Furniture Kit, Griffin Armament has just introduced their new PRIMO Gas Block. Its easy to underestimate the importance of a good gas block. The PRIMO Gas Block is an ultra high quality gas block with the ability to use the included set screws or you can go one step further and pin the gas block to the barrel for an bomb proof setup. Its also decently affordable so you don’t have to spend a ton more for a quality product.

Griffin Armament PRIMO Gas Block

The PRIMO Gas Block™ is a low profile billet machined, .750” ID block, made from 416R crucible alloy steel. The gas 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.

–  416R Crucible Alloy
–  QPQ Nitride finish
–  .750″ 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

The new Griffin Armament PRIMO Gas Block has an MSRP of just $54.95 and is available now at

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