Sig Sauer M400 Forge RM400-556N-16B-FORGE-CON Rifle 5.56 NATO 16" 30+1 Semi-Auto Concrete Gray ROMEO-MSR

The SIG Sauer M400 Forge Concrete Gray is a semi-automatic AR-15 style rifle chambered in 5.56 NATO and built around a 16-inch cold hammer forged barrel with a mid-length direct impingement gas system. It features a Concrete Gray Cerakote finish, a free-floating M-LOK handguard with a full-length Picatinny top rail, and a 6-position MAGPUL SL-K stock for an adjustable, modern configuration. This model includes a TriggerTech 3.5-pound two-stage flat blade duty trigger, ambidextrous controls, a ROMEO-MSR Gen II 2 MOA red dot sight, and ships with one 30-round polymer magazine.

• 16-inch cold hammer forged 5.56 NATO barrel
• Concrete Gray Cerakote finish with M-LOK handguard
• TriggerTech two-stage flat trigger and ROMEO-MSR Gen II

The M400 Forge Concrete Gray offers a refined, optics-equipped 5.56 NATO platform with premium trigger, ergonomic furniture, and ambidextrous features. It is suited to shooters wanting a ready-to-use, accessory-friendly AR-style rifle with an included red dot sight.