Grendel Hunter Click Adjustable Gas Block Crafted for precision and longevity, this black nitride .750 adjustable gas block is machined from high-strength 4140 PHT steel, offering a compact profile (1.467” H x .957” W) that weighs 2.2 oz. It features a nitrided 303 Stainless Steel adjustment screw with 22 clicks of adjustment—including a zero-shutoff—allowing for fine-tuned gas regulation via a 1/8 hex key. Made in the U.S.A. Grendel Hunter 6.5 Grendel / 6mm ARC / .22 ARC Bolt Carrier Group 8620 Steel Carrier 4130 Steel Gas Key with Grade 8 fasteners (Staked) 4140 Steel Cam Pin M16 Auto Profile 6.5 Grendel Type II (.136) / 6mm ARC / .22 ARC Bolt – 9310 Steel (Shot Peened) Black Nitride Mil-spec Gas Rings MPI Hard Chrome Firing Pin
