Sig Sauer M400 Forge 5.56 NATO Semi-Automatic Rifle

The Sig Sauer M400 Forge is a semi-automatic modern sporting rifle chambered in 5.56 NATO, built around a durable forged alloy receiver finished in Moss Green Cerakote. This 16-inch barrel rifle features a mid-length gas system designed for reliable cycling and improved recoil management.

Outfitted with a 15-inch M-LOK handguard for accessory mounting flexibility and a Picatinny rail for optics installation, the M400 Forge is optics-ready right out of the box. It includes a Sig ROMEO-MSR Gen II red dot optic with a 2MOA dot for immediate target acquisition.

The rifle ships with a collapsible 6-position Magpul SL-K stock and a TriggerTech two-stage flat trigger for a consistent, clean pull. A single 30-round magazine is included.

• Chambered in 5.56 NATO with a 16-inch barrel and 1-in-7 twist rate
• Forged alloy receiver with Moss Green Cerakote finish
• 15-inch M-LOK handguard with full-length Picatinny rail
• Sig ROMEO-MSR Gen II 2MOA red dot optic included
• TriggerTech two-stage flat trigger; 6-position Magpul SL-K stock
• Overall length: 35.5 inches; includes one 30-round magazine