Sig Sauer
M400 Forge, 5.56 NATO, 16", Romeo-MSR Gen II, 15" M-LOK, Black, 30-rd
IVS Product #1010840
MFG #RM400-556N-16B-FORGE

- The Sig Sauer M400 Forge is a 5.56 NATO rifle that delivers a complete optic-ready AR-15 package out of the box, pairing a 16" cold hammer forged barrel and 30-round capacity with an included ROMEO-MSR Gen II 2MOA red dot. A TriggerTech 3.5-pound two-stage flat blade duty trigger and mid-length gas system keep shots precise and recoil manageable. The 15" M-LOK handguard, Magpul SL-K stock, and ambidextrous charging handle round out a rifle built to perform from day one.
- The Sig Sauer M400 Forge earns its place among serious modern sporting rifles through a combination of premium components and battle-tested engineering. Its cold hammer forged steel barrel with FNC finish delivers exceptional accuracy and long-term durability under sustained fire. The mid-length gas system reduces felt recoil and muzzle rise, keeping follow-up shots fast and controlled. Ergonomics and adaptability are central to the M400 Forge experience, starting with a 15" M-LOK handguard that offers ample real estate for accessories while keeping the rifle lightweight and balanced. As a capable 5.56 AR-15 rifle, it delivers a crisp, consistent 3.5-pound TriggerTech pull that inspires confidence in both precision and rapid-fire applications. A 6-position Magpul SL-K stock and ambidextrous charging handle round out a setup that adapts naturally to any shooter's preference or mission profile.