SIG Sauer M400 Trd V2 5.56 NATO 11.5" Threaded Barrel Carbine

The SIG Sauer M400 Tread V2 556 11.5" is a semi-automatic pistol built on the AR platform with a threaded barrel and pistol brace configuration. Engineered for operators and serious enthusiasts who require a compact, versatile platform capable of intermediate rifle performance without the regulatory footprint of a traditional carbine. The 11.5-inch threaded barrel delivers effective velocity for 5.56 NATO rounds while maintaining a compact overall length suited to tight operational spaces, vehicle stowage, and room-entry scenarios.

Built with SIG Sauer's reputation for reliability under demanding conditions, the M400 Tread V2 features a black anodized finish designed to resist corrosion and withstand the rigors of patrol and training environments. The 30-round capacity magazine provides substantial firepower for extended engagement scenarios. The threaded barrel accommodates industry-standard muzzle devices—flash hiders, suppressors, or brakes—allowing end-user customization based on mission requirements. The included pistol brace configuration provides stabilization for single-handed or braced firing positions, making this platform accessible to a broader range of operators and shooters.

This configuration serves law enforcement agencies, military support units, private security personnel, and civilian tactical enthusiasts who prioritize compact AR platform firearms for duty, training, or specialized applications. The 5.56 NATO caliber balances recoil management with range and terminal performance, making it suitable for both precision shooting and rapid-fire drills. Whether deployed for patrol operations, breaching scenarios, or advanced marksmanship training, the M400 Tread V2 provides the modularity and performance expected from a SIG Sauer AR platform.

The AR platform remains the gold standard for semi-automatic rifle-caliber pistols, offering proven ergonomics, accessory compatibility, and intuitive controls. The M400 Tread family is recognized for delivering consistent accuracy and durability in both civilian and professional settings, making this V2 iteration a practical choice for shooters seeking a modern, compact 5.56 platform.