Bowden Tactical AR-15 Cornerstone Series 13 Inch Full Flat Top Handguard

Bowden Tactical AR-15 Cornerstone Series 13 Inch Full Flat Top Handguard. AR-15 Cornerstone series competition rail handguard in black hard coat anodize. Barrel nut torque spec is 40 to 60 lbs. no timing of gas tube allows for a lower than mil spec setting handguard clamp screws torque setting is 32 inch lbs. or about 1/4 turn past snug with long handle allen wrench. Standards come with a full length picatinny rail the whole length of rail. These AR-chitect AR15 Cornerstone Series handguards are designed to be slim and light. A low cost alternative to foreign sourced hand guards. American made quality at an import price. An overall width of 1.5" and a weight of only 9.5 oz. for the 15" model provide ultimate comfort. A 1.3" I.D. will accommodate most low profile gas blocks. We have seen some interference with some clamp-on style low profile gas blocks) MLOK slots at the 3,6 and 9 positions are manufactured to MAGPUL standards to ensure proper fitment with any MAGPUL certified accessories. Every handguard comes with a 4140 pre-heat treated steel barrel nut that has been black nitride coated not phosphates coated. All mounting hardware is included with full mounting instructions. A 2" long barrel nut ensures rigid mounting for rock solid accessory mounting. This system will not work with piston driven rifles. American made from American sourced 6061 T-6 extruded aluminum. Available in hard-coat black anodize or in the bright. Hard-coat anodized in accordance with MIL-A-8625 Type III class II. 100% warranty against any and all manufacturers defects. If Bowden missed something they will replace it at no cost to you.