- Mounting compatible with all M-LOK Hand Guards and forends - Rail section compatible with all 1913 Picatinny rail accessories - 7 slots for mounting accessories - Injection molded from reinforced composite - Beveled to reduce snagging - Recoil/impact mitigation lugs hold RIS securely in place - All hardware included In the Box 7-slot rail section mounting hardware instructions Specifications: Build Reinforced compositeLength 3.125 in.Height 0.375 in.Width 0.750 in.Weight 0.6 oz. with hardwareColor MATTE BLACK California Proposition 65 Warning: Cancer and Reproductive Harm - www.P65Warnings.ca.gov