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PRIMO Gas Block .625" 416R crucible alloy
PRIMO Gas Blockâ„¢ .625" 416R crucible alloy

MSRP: $54.95

Product Code: GAPGB625


The PRIMO Gas Block™ is a low profile billet machined, .625” 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.

Not compatible with Griffin's HEDP barrels. Compatible gas block can be found here .

    • 416R Crucible Alloy Steel
    • QPQ Nitride finish
    • .625" 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

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