Sig Sauer M400 Forge 5.56 NATO Semi-Automatic Rifle
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The Sig Sauer M400 Forge is a semi-automatic modern sporting rifle chambered in 5.56 NATO, designed for accuracy and reliability in a wide range of applications.
This rifle features a 16-inch barrel with a 1-in-7 inch twist rate, delivering consistent performance with standard 5.56 NATO ammunition. The mid-length gas system helps manage recoil for smoother cycling and improved shooter comfort.
The forged alloy receiver is finished in Concrete Gray Cerakote and comes optics-ready with a Picatinny rail and M-LOK handguard for versatile accessory mounting. A 15-inch M-LOK handguard provides ample space for rail sections and compatible accessories.
Out of the box, this rifle includes the Sig ROMEO-MSR Gen II red dot sight with a 2MOA reticle, a 6-position Magpul SL-K stock, and a TriggerTech two-stage flat trigger for enhanced control.
- Chambered in 5.56 NATO / .223 Remington
- 16-inch barrel with 1-in-7 inch twist rate
- Mid-length gas system for balanced performance
- Concrete Gray Cerakote finish on forged alloy receiver
- 15-inch M-LOK handguard with Picatinny rail
- Includes ROMEO-MSR Gen II 2MOA red dot sight
| MPN | RM400-556N-16B-FORGE-CON |
| UPC | 798681744183 |
| Brand | Sig Sauer |
| Model | M400 |
| Action | Semi-Automatic |
| Finish | Concrete Gray Cerakote |
| Sights | Optics Ready (ROMEO-MSR Gen II included) |
| Caliber | 5.56 NATO |
| Capacity | 30+1 |
| Barrel Length | 16 in |
| Rate of Twist | 1-in-7 in |
| Overall Length | 35.5 in |
| Thread Pattern | 1/2-28 |
| Magazines Included | 1 |
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