Sig Sauer SIGM400 5.56 NATO 16" Bbl Tread Coil V2 Black Semi Tele Stock AL M-LOK HG Rifle w/Romeo5 GEN II Red Dot & (1) 30rd Mag RM400-16B-TRD-V2-COIL

The SIG Sauer M400 TREAD V2 is a premium, optics-ready AR-15-style rifle chambered in 5.56 NATO/.223 Rem, designed for modern shooters who demand performance, modularity, and reliability. It features a 16" stainless steel barrel with a 1:8" twist rate and 1/2x28 threaded muzzle, ideal for attaching muzzle devices or suppressors. The mid-length gas system ensures smooth cycling and reduced recoil, while the free-floating M-LOK handguard allows versatile accessory mounting. Outfitted with a MAGPUL SL-K 6-position stock, SIG’s Matchlite 2-stage trigger, and ambidextrous controls, the TREAD V2 offers exceptional ergonomics and control. Its full-length Picatinny top rail is ready for optics of your choice, making it a customizable platform ideal for defensive, recreational, or competitive shooting.

30-round detachable AR-15 magazine (capacity may vary by state)User manual and warranty documentationTrigger lockFactory box with protective packagingNo optic or iron sights included (optics-ready platform)