Sig Sauer M400 Tread Pistol 5.56 Nato 11.50 inch 30+1 Chrome Hard Coat Anodized

The Sig Sauer M400 Tread Pistol (M40011BTRDV2) brings the M400 series into a compact, duty-ready package built around a carbine gas system that yields smoother operation and reduced felt recoil for faster follow-up shots, making it a smart choice for range training, close-quarters defense, and tactical drills. Chambered in 5.56 NATO with an 11.50" cold hammer-forged barrel and a 1:7 twist rate, this semi-auto pistol delivers reliable stabilization of heavier bullets and long-term barrel life, while the threaded muzzle and 3-prong flash hider tame muzzle rise and gas signature. The free-floating, chrome hard coat anodized M-LOK handguard gives you solid accessory mounting without touching the barrel, and the optic-ready upper accepts red dots or low-power optics straight out of the box for fast target acquisition. The SIG Matchlite two-stage trigger provides a crisp, predictable break for improved shot control and group work, and the ambidextrous safety plus integrated QD sling mount on the lower receiver accommodate right- or left-handed operators and carry setups. This semi-auto, polymer-grip pistol weighs about 5.90 lbs OAL 30.10" and requires an FFL transfer for purchase.