Description
The Sig Sauer M400 Forge is a California-compliant AR-pattern semi-auto rifle chambered in 5.56x45mm NATO. Its 5.56 NATO chamber is also compatible with 223 Remington, and the included 10-round magazine provides a 10+1 capacity.
The rifle uses a 16″ cold-hammer-forged barrel with a 1:7 twist and mid-length gas system. The barrel falls within the established 16″ to 16.99″ barrel-length range. Overall length is 34.40″, and unloaded weight is 6.20 lbs, placing it within the listed 6 lbs to 6.99 lbs weight range.
The alloy receiver wears a black anodized finish and incorporates an upper Picatinny rail. A 15″ aluminum M-LOK handguard provides accessory-mounting positions along its full-length configuration.
The California-compliant furniture combines a fixed black Magpul MOE polymer stock with a shark-fin blade grip. The rifle has a matte black finish throughout its established configuration.
Fire-control and handling features include a TriggerTech two-stage flat-blade duty trigger and an ambidextrous charging handle. A SIG ROMEO-MSR Gen II red-dot optic with a 2 MOA dot is included, along with one 10-round magazine.
This rifle is offered in New condition and comes in its established California-compliant configuration.
DISCLAIMER: Firearms and receivers are subject to state-specific shipping restrictions and must be transferred through a valid FFL dealer. Please visit our shipping restrictions page to review all applicable restrictions for your state. Subject to change.









