Sig Sauer RM400-16B-TRD-V2-COIL 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

The M400-TREAD V2 COIL takes the proven TREAD platform and ships it ready to perform—no extra setup required. It pairs the V2’s free-floating handguard and two-stage Matchlite DUO trigger with factory-installed premium accessories, including a ROMEO5 Gen II compact red dot, M-LOK vertical foregrip, and barricade stop, so the rifle is range-ready straight from the box.

Built around a precise 16″ stainless steel barrel with a 1:8 twist and a mid-length gas system for smooth cycling and reduced recoil, the Sig Sauer M400-TREAD V2 COIL Rifle also includes a 3-prong flash hider, ambidextrous safety and magazine release, and integrated QD mounts on the lower receiver. Every component is purpose-fit and factory-installed to eliminate guesswork, giving you a reliable, shoot-ready AR that balances accuracy, ergonomics, and immediate capability.

Features of the Sig Sauer M400-TREAD V2 COIL Rifle

• Romeo5 Gen II Compact Red Dot Sight


• M-LOK Vertical Foregrip and Barricade Stop


• 16” Stainless Steel Barrel


• Tread Enhanced M-LOK Handguard


• Mid-Length Direct Impingement Gas System


• 6 Position MAGPUL SL-K Stock 


• Ambidextrous Saftey and Mag Release