Sig Sauer M400 Forge with ROMEO-MSR GEN II 5.56mm NATO 16in Black Anodized Semi Automatic Modern Sporting Rifle - 30+1 Rounds - The SIG SAUER M400-FORGE is a purpose-built 5.56 NATO rifle designed to deliver dependable performance, accuracy, and durability for today's shooters. Featuring a 16-inch cold hammer forged barrel and a proven mid-length gas system, the M400-FORGE offers enhanced barrel life, reduced recoil impulse, and reliable operation across a variety of shooting conditions. Premium Features. Ready Out of the Box. Equipped with a TriggerTech 3.5-pound two-stage flat blade duty trigger, the M400-FORGE provides a crisp, consistent break that rivals many aftermarket upgrades. Combined with the included ROMEO-MSR Gen II red dot optic, shooters benefit from rapid target acquisition and improved confidence from the very first range session. The rifle's free-floating M-LOK handguard maximizes accessory compatibility while helping maintain accuracy. An ambidextrous charging handle and MAGPUL SL-K adjustable stock enhance comfort, control, and adaptability for a wide range of shooting applications. Built to the exacting standards that have made SIG SAUER a trusted name among military, law enforcement, and civilian shooters worldwide, the M400-FORGE delivers premium performance in a ready-to-run platform. Every rifle is backed by the SIG Infinite Guarantee, providing a lifetime, fully transferable warranty for added peace of mind. TriggerTech 3.5 pound two-stage flat blade duty trigger; 16in cold hammer forged barrel with mid-length gas system; ROMEO-MSR Gen II 2 MOA red dot included; Full-length free-floating M-LOK handguard; Ambidextrous charging handle; MAGPUL SL-K 6-Position adjustable stock;