Sig Sauer M400 Sdi 5.56 Nato 11.5 inch 30+1 Anodized Chrome Moly

The Sig Sauer M400-SDI X pistol delivers a compact, duty-grade 5.56 NATO platform built for serious range work, tactical applications, and ambidextrous shooters, featuring the M400-SDI series� uniquely engineered lower receiver with a bolt catch and release accessible to left- and right-handed operators for faster transitions and reloads. With an 11.50" Chrome Moly steel threaded barrel and a low-profile gas block on a carbine-length gas system, the pistol balances controllability and reliability while the free-floating M-LOK handguard gives a rigid mounting surface for lights, rails, or foregrips without affecting barrel harmonics. The 2-stage Matchlite Duo trigger provides a predictable pull for follow-up shots during competition or precision work, and the AR-compatible reduced-angle polymer grip and ambidextrous safety make extended use comfortable. A Picatinny rail and compensator/flash hider-ready muzzle offer straightforward optics and muzzle device integration for hunters using AR-style cartridges, patrol officers requiring maneuverable platforms, or range shooters chasing tight splits. As a semi-auto pistol in the M400 family, it ships with a 30+1 capacity, an overall length of 30.20", a 5.80 lb weight class feel, and requires an FFL transfer.