SIG M400 TREAD Coil
5.56 NATO cal., AR-15 style, DI, 16 in. stainless steel barrel, 30 shot polymer mag., two-stage match trigger, ROMEO5 red dot sight, 6-pos. Magpul SL stock, alloy forend, polymer grip, M-LOK accessory rail, 13 in. lightweight handguard, amb...