





SIG SAUER M400 COIL V2 TREAD 5.56 NATO SEMI-AUTO RIFLE W/ROMEO 5 GEN II
The SIG Sauer M400 Coil V2 TREAD is a ready-to-run 5.56 NATO semi-automatic built for reliable, versatile performance. It pairs a 16″ stainless steel barrel (1:8 twist) and mid-length direct-impingement gas system with a Tread enhanced M-LOK handguard, M-LOK vertical foregrip and barricade stop for secure, modular accessory mounting. The rifle ships optic-equipped with a Romeo5 Gen II red dot, SIG’s crisp 2-stage Matchlite DUO trigger, ambidextrous safety and magazine release, and a six-position MAGPUL SL‑K stock for easy length-of-pull adjustment—coming in at about 7 lbs loaded and 35.75"" overall. Rugged black-anodized alloy construction, a 30‑round magazine capacity, and customer-focused controls make the M400 Coil V2 an excellent choice for range, competition, or duty use.
FEATURES
- Romeo5 Gen II Compact Red Dot Sight
- M-LOK Vertical Foregrip and Barricade Stop
- 16” Stainless Steel Barrel
- Tread Enhanced M-LOK Handguard
- SIG 2-Stage Matchlite DUO Trigger
- Mid-Length Direct Impingment Gas System
- 6 Position MAGPUL SL-K Stock
- Ambidextrous Saftey and Mag Release
SPECS
- CALIBER: 5.56 NATO
- FRAME MATERIAL: ALLOY
- FRAME FINISH: BLACK ANODIZE
- BARREL MATERIAL: STAINLESS STEEL
- BARREL FINISH: NATURAL
- MAGAZINE CAPACITY: 30 ROUNDS
- SIGHTS: ROMEO5 GEN II OPTIC INSTALLED
- TRIGGER: 2-STAGE MATCHLITE DUO
- MEASUREMENTS: IMPERIAL
- OVERALL LENGTH: 35.75 in
- OVERALL HEIGHT: 9.25 in WITH OPTIC INSTALLED
- OVERALL WIDTH: 2.6 in
- BARREL LENGTH: 16 in
- BARREL TWIST: 1:8 in
- WEIGHT W/MAGAZINE: 7 lbs
M400 Coil V2 Tread 5.56NATO 16"BBL (1)30RD w/Romeo5 G2 BLK





