KAK Industry Low Profile Gas Block Features The KAK Industry Low Profile Gas Block is machined from 4140 steel a material selected for its strength and ability to withstand the heat and pressure cycling generated during firing. Its phosphate finish specifically a manganese phosphate coating provides lasting corrosion resistance while also helping the surface retain lubricant for smoother long term function. Sized for a .750 inch barrel diameter this gas block fits one of the most common barrel gas block journal sizes used across AR-15 builds. The low profile design allows the gas block to sit cleanly under most free float handguards without creating a bulge or obstruction. Knurled set screws are included with the gas block giving builders a secure grip for tightening the block onto the barrel without slipping during installation. A gas tube roll pin ships alongside the set screws completing the hardware needed to finish installing both the gas block and gas tube in one package. KAK Industry was founded in 2011 by Kurt Kosman specifically to address a gap in the market for quality American made firearm components at sustainable prices. The KAK Industry Low Profile Gas Block is available for sale at GrabAGun for AR-15 builders assembling a reliable low profile gas system. KAK Industry Low Profile Gas Block Specifications Manufacturer: KAK Industry Model: Low Profile Gas Block Color: Black Material: Steel Finish: Manganese Phosphate Diameter: .750 Includes: Knurled Set Screws / Gas Tube Roll Pin Available At: GrabAGun