Rainier Industries PRO Series MK1 M-LOK AR-15 Handguard - Black

Rainier Industries Pro Series line of rails were designed for the hard use, professional end-user. To achieve this, we designed it an extended aluminum barrel nut and larger stainless steel mounting lugs for better rigidity to maintain a mechanical zero. The Pro Series MLOK rail is built to stand up to the rigors and demands of what your duty weapon requires. Pro Series MLOK Rail Features: CNC machined 6000 series extruded Aluminum Hard Coat Anodized Milspec Type III, Class 2 Black Barrel Nut is 7075 Aluminum, steel wrench and mounting hardware included No Barrel nut shims required for installation 1.31" interior diameter, 2.0" x 1.56" outer dimensions Full length MLOK slots at the 2, 3, 6, 9, and 10 o'clock positions Laser engraved T-marks Compatible with most known low profile non-adjustable and adjustable gas blocks Made & Assembled in USA Weight: 9.55" - 11.0 oz 10.7" - 11.9 oz 11.7" - 12.1 oz 13.7" - 13.5 oz 15" - 14.7 oz