The all new 10 inch M-LOK Handguard is our slimmest LR-308 series yet! Built for short and long barreled rifles, it extends further down the barrel, providing more rail space and more flexibility in accessory or hand placement. The free float design attaches directly to the receiver without coming into contact with the barrel or impacting barrel harmonics. The universal M-LOK rail platform accepts all standard M-LOK accessories. Available in black. Simply measure the height of the tab that juts out above the charging handle. Low profile receivers measure 1/8" and high profile receivers measure 3/16". Brand: Presma Includes: M-LOK free float quad rail handguard, steel barrel nut, castle nut, anti-rotation set screws, and Allen wrench Materials: A6061-T6 Aluminum Alloy Compatibility: DPMS High Profile LR-308 Weight: 15 oz Length: 10 in Height: 2.5 in Internal Diameter: 1.54 in Color: Black Warranty: Lifetime