Sig Sauer MCX Carbine, 300 Blackout/5.56mm Barrel X-Change Kit
The culmination of years of hard work and research, the Sig Sauer MCX is a completely modular weapon system built around Sig's proven short stroke gas piston system. The MCX utilizes groundbreaking features such as an auto-regulating gas system that automatically adjusts based on system pressure to allow the shooter to switch between sonic/subsonic ammo and suppressed/unsuppressed seamlessly. A rotating bolt system and Nickel Boron Coated bolt and bolt carrier enhance the weapons safety and durability. Lightweight aluminum keymod rails, quick change barrel capability, ambidextrous AR-style controls, 16" lightweight barrel, low-profile folding stock, and multi-caliber capability (5.56mm, 7.62X39mm, .300 Blackout) in a package weighing under 7lbs makes this platform a serious competitor for LE and civilian service. Comes with one 30RD mag. Chambered in .300 Blackout. Comes with 5.56mm barrel exchange kit.