The SIG SAUER M400 Forge is a semi-automatic modern sporting rifle built around a cold hammer-forged 16 inch barrel and designed for versatile range, duty, and sport applications. It ships with a TriggerTech two-stage flat blade trigger and a ROMEO-MSR Gen II 2 MOA red dot optic. The rifle features a full-length free-floating M-LOK handguard and a six-position Magpul SL-K adjustable stock for adaptable ergonomics.
Key Specifications
- Chambering is 5.56 NATO.
- The barrel measures 16 in and is cold hammer-forged.
- The barrel twist rate is 1:7.
- Action type is Semi-Auto using a mid-length direct impingement operating system.
- The trigger is a TriggerTech 3.5-pound two-stage flat blade design.
- An optic is included: the ROMEO-MSR Gen II with a 2 MOA dot.
- The handguard is a full-length free-floating M-LOK design with Picatinny rail sections.
- Stock is a Magpul SL-K 6-position adjustable stock.
- Magazine capacity is 30 + 1.
- Weight with magazine listed as 6.8 lb.
The M400 Forge provides a balance of proven AR ergonomics and SIG SAUER engineering, with an optics-ready receiver and user-focused controls like an ambidextrous charging handle and ambidextrous manual safety. Its specification set supports a wide range of shooting uses where a durable, modular platform is required.
Product information is supplied by the manufacturer and/or distributor and may be automatically formatted or enhanced using AI for clarity and consistency. While we strive for accuracy, specifications, features, and included items may change without notice. Always verify details using the manufacturer’s official documentation and the information shown on this product page before purchase or use.
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