Product Description
Product Features & Specifications Sig Sauer RM400SDI16BFDE M400 SDI-X 5.56 NATO 30+1 16" Black Threaded Barrel, Flat Dark Earth Cerakote Picatinny Rail Aluminum Receiver, M-LOK Handguard, 6 Position Magpul SL Black Synthetic Stock, Reduced Angle Grip, Ambidextrous The M400-SDI X was designed to