The SIG M400 Forge is a full-length, duty-focused rifle engineered for smooth performance, durability, and immediate readiness. Its mid-length gas system and cold hammer forged barrel provide a refined recoil impulse and consistent accuracy, while premium controls and modern ergonomics support confident handling. Finished in Flat Dark Earth Cerakote and shipped with a factory-installed red-dot optic, the M400 Forge is built to perform straight out of the box.
FEATURES
- TriggerTech two-stage flat blade duty trigger
- Mid-length gas system for balanced cycling
- Ambidextrous charging handle
- 15" free-floating M-LOK handguard
- Continuous Picatinny top rail
- Six-position MAGPUL SL-K stock
- Factory-included ROMEO-MSR Gen II red-dot optic with 2 MOA aiming point
SPECIFICATIONS
- Caliber: 5.56 NATO
- Action: Semi-automatic
- Operating System: Gas
- Capacity: 30+1
- Barrel Length: 16"
- Barrel Material: Cold hammer forged steel
- Barrel Finish: Black
- Twist Rate: 1:7"
- Receiver Material: Alloy
- Receiver Finish: Flat Dark Earth Cerakote
- Receiver Description: Picatinny rail
- Handguards: M-LOK
- Grips: Black polymer
- Trigger: TriggerTech two-stage
- Trigger Pull Weight: 3.5 lbs
- Stock Material: Polymer
- Stock Description: Magpul SL-K
- Overall Length: 32.25"–35.50"
- Height: 7.20"
- Width: 2.70"
- Weight: 6.80 lbs
