Sig Sauer M400 Sentry Pkg 5.56 NATO Rifle Rifle16″ Black RM400SDI16BR5FX

Description

Description

The SIG Sauer M400 Sentry Pkg delivers proven AR-pattern performance with modern enhancements and battle-tested reliability built for home defense, training, duty use, or precision recreational shooting. Chambered in 5.56 NATO and featuring a 16″ cold-hammer-forged barrel, this rifle balances accuracy, durability, and maneuverability in a rugged, versatile platform ready for immediate deployment.

Engineered by SIG Sauer, a leader in small arms innovation, the M400 Sentry Pkg incorporates a durable forged upper and lower receiver set finished in black for corrosion resistance and long-term service life. The 16″ barrel offers a good balance of velocity and controllability, while the mid-length gas system helps smooth recoil impulse and reliable cycling with a wide range of ammunition.

A free-float M-LOK handguard provides a continuous top picatinny rail for optics and mounting solutions, along with intuitive attachment points for lights, grips, and accessories. The rifle comes equipped with an adjustable stock and ergonomic pistol grip to accommodate a variety of shooter preferences and enhance comfort during sustained use.

SIG Sauer’s commitment to quality is evident in the tight tolerances, dependable function, and modularity of the M400 platform. Whether you’re zeroing optics, drilling fundamentals at the range, or configuring a defensive package, the M400 Sentry delivers performance you can rely on.