Product Description
| The Sig Sauer M400 is a semi-automatic rifle built on the proven AR-15 platform, chambered for the 5.56×45mm NATO cartridge — a common, versatile round used for range shooting, sport, hunting, and defensive applications. ? Design & Operation Action: Direct gas impingement, semi-automatic (AR-15 style). Bolt: Rotating locking bolt. Magazine: Accepts standard AR-15/M16-pattern magazines. Built with a forged 7075-T6 aluminum lower receiver — strong and lightweight. This platform is simple, familiar to many shooters, and supported by a huge aftermarket of parts and accessories. |
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