Description
SIG Sauer M400 Forge Rifle with ROMEO-MSR Gen II, 5.56 NATO, 16-Inch Barrel, Black, 10-Round
The SIG M400 FORGE 10-round is SIG’s duty-barreled AR packed with a 10-round magazine: cold-hammer-forged 16 in. barrel, TriggerTech 3.5 lb two-stage, and a factory ROMEO-MSR Gen II 2 MOA.
FORGE is SIG’s duty-barreled AR: a cold-hammer-forged 16 in. barrel, mid-length gas, TriggerTech’s 3.5 lb two-stage, and a factory ROMEO-MSR Gen II 2 MOA already on the rail. Magpul’s SL-K stock and an ambidextrous charging handle round it out. SIG’s pitch is a rifle forged for the mission — this one ships with the optic and the trigger already in place.
The barrel is 1:7 twist with an A2 birdcage on a 1/2-28 square shoulder. The handguard is full-length M-LOK. The rifle is 6.8 lb, 35.5 in. extended and 32.25 in. collapsed. Height with the ROMEO-MSR Gen II is 9.4 in. Width is 2.7 in.
This 10-round FORGE
This is the same black FORGE rifle with a 10-round magazine instead of the 30-round magazine. Factory ROMEO-MSR Gen II 2 MOA, TriggerTech 3.5 lb, Magpul SL-K, A2 birdcage. The barrel and optic match the unrestricted FORGE.
What ships
Capacity is the difference. This is a serialized 5.56 rifle and ships to a licensed FFL.
Specifications and Included Items
- Model: RM40055616FORGE10
- Caliber: 5.56 NATO
- Barrel: 16 in. cold-hammer-forged steel, 1:7 twist
- Muzzle: A2 birdcage flash hider
- Operating system: Mid-length direct impingement
- Trigger: TriggerTech 3.5 lb two-stage flat blade
- Optic: Factory ROMEO-MSR Gen II 2 MOA
- Handguard: Full-length free-float M-LOK / Picatinny
- Stock: 6-position Magpul SL-K
- Finish: Black anodized
- Overall length: 35.5 in. extended, 32.25 in. collapsed
- Weight: 6.8 lb
- Magazine included: One 10-round polymer AR-15 magazine
- FFL: Rifle; ships to a licensed FFL dealer







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