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  • Armalite .875 Picatinny Railed Gas Block
Armalite .875 Picatinny Railed Gas Block

Reference 03-875-04

PRi Armalite .875 Picatinny Railed Gas Block


This 875 diameter barrel mounted gas block has a 2 1/2" top rail that has the same plane as the Armalite 308 receiver. The gas block is held into place with crossbolts.

In Stock


The rail is constructed of lightweight T6 6061 hard coat Black anodized aluminum. This gas block weighs 2.5oz. This gas block fits over a .875 diameter barrel. The block locks into place with 2 crossbolts the same as our original gas block front sight. The rail height from barrel center line is 1.328 inches.  The rail length is 2.50"  The gas block comes with a .030 spacer ring and a roll pin for gas tube.

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Gas Block Size

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