Yankee Hill

Unique, all-steel gas blocks expand the versatility of your rifle by providing a variety of accessory rail and handguard mounting options. Especially helpful in customizing short-barrelled tactical rifles. Machined from bar stock for extra strength and rigidity, then mil-spec Parkerized for exceptional wear- and corrosion-resistance. Specter model provides plenty of clearance to mount a free-float forearm that extends over the gas block, including Yankee Hill Specter handguards. Fits under any forearm with an inside diameter of 15⁄8" or greater. Easy to install two-piece design eliminates the need to remove a pinned or welded-on flash hider or muzzle brake. Clamps securely to barrel with four, hardened steel, hex-head cap screws.SPECS: Steel, mil-spec phosphate finish.  Specter - 1-7⁄8" (4.7cm) long, 1½" (3.8cm) wide. 4.4 oz. (125 g) weight. Fits barrel with .750" O.D. at gas port.