Description
- 16" cold hammer forged barrel with mid-length gas system
- TriggerTech 3.5 pound two-stage flat blade duty trigger
- Full-length free-floating M-LOK handguard
- Ambidextrous charging handle
- Magpul SL-K 6-Position adjustable stock
- ROMEO-MSR Gen II 2 MOA red dot included
- (1) 30rd Polymer Mag Included
The Sig Sauer M400-Forge is a modern 5.56 NATO rifle engineered for shooters who demand reliability, precision, and performance. Built around a 16" cold hammer forged barrel and mid-length gas system, the M400-Forge delivers exceptional durability and smooth, consistent operation in any environment.
At the heart of the rifle is a TriggerTech 3.5 lb two-stage flat blade duty trigger, delivering the kind of crisp, predictable break shooters typically upgrade to. Paired with the included ROMEO-MSR Gen II red dot optic, the M400-Forge provides fast target acquisition and confident shooting right out of the box.
A full-length free-floating M-LOK handguard, ambidextrous charging handle, and Magpul SL-K adjustable stock deliver modern ergonomics and adaptability for a wide range of applications.
The result is a rifle ready for the range, defense, and the mission ahead.
Warranty Information
- Action Type: Semi-Automatic
- Operating System: Mid-Length Direct Impingement
- Caliber: 5.56 NATO
- Barrel Length: 16"
- Mags Included: (1) 30rd Polymer Mag
- Mag Type: AR-15
- Barrel Material: Cold Hammer Forged Steel
- Twist Rate: 1:7"
- Threads: 1/2"-28, 90 Degree Shouldered
- Receiver Finish: Concrete Gray Cerakote
- Sights: ROMEO-MSR GEN II with 2 MOA Dot
- Muzzle Device: A2 Birdcage Flash Hider
- Stock Type: 6-Position Magpul SL-K
- Grip Type: Reduced Angle
- Trigger Type: TriggerTech 3.5lbs 2-Stage Flat Blade
- Trigger Shape: Flat
- Manual Safety: Ambidextrous
- Forend Type: M-LOK Concrete Gray Cerakote
- Accessory Rail: M-LOK/Full-Length Picatinny
- Overall Length: 35.5"
- Collapsed Length: 32.25"
- Height: 9.4"
- Width: 2.7"
- Weight: 6.8 lbs
