Yankee Hill Machine Co., Inc. AR-15 GAS BLOCK ASSEMBLY LOW PROFILE .750 STEEL BLACK YHM-9383

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. Low Profile version is a low and narrow, one-piece block designed to fit inside most free-float handguards; allows use of rifle length forearms on carbine length barrels for a clean, streamlined look and added gripping surface. Secures to barrel with included setscrews.  Low Profile Slotted has a slot cut into the bottom for easy mounting and dismounting; slide the block into position and tighten the two pinch screws to snug it securely to the barrel.