Sig Sauer SIGM400 5.56 NATO 16" Bbl Tread V2 Elite Concrete Semi Tele Stock AL M-LOK Handguard Rifle & (1) 30rd Mag RM400-16B-TRD-V2CON

The SIG Sauer SIGM400 M400 TREAD V2 is an optics‑ready, AR‑pattern semi‑automatic rifle built for modularity and practical performance. Chambered in 5.56 NATO with a 16" stainless barrel (1:8″ twist, ½‑28 muzzle threads) and a mid‑length gas system, it balances controllable recoil and reliable cycling. The rifle features a free‑float M‑LOK handguard for accessory mounting, a full‑length Picatinny top rail for optics, a MAGPUL SL‑K adjustable 6‑position stock for user fit, and SIG’s Matchlite 2‑stage trigger for improved shot control. Controls are ambidextrous‑friendly, and the Elite Concrete finish provides a durable, neutral‑tone coating suited to field use. Designed for range, duty, and modular builds, the TREAD V2 is ready for your optic and mission‑specific accessories.

30‑round AR‑pattern detachable magazine (capacity may vary by state law)3Owner’s manual and warranty paperwork3Trigger lock or basic safety device (varies by retailer/region)3Factory packaging (protective box / foam inserts)