SIG Sauer · Carbine · In Production · 2015
| Weight (empty) | 2700 g (95.2 oz) |
| Overall Length | 787 mm (30.98") |
| Barrel Length | 406 mm (15.98") |
| Height | 203 mm (7.99") |
| Width | 71 mm (2.80") |
| Magazine Capacity | 30 rounds |
| Action Type | Gas Operated Short Stroke Piston |
| Firing Mechanism | Hammer Fired |
| Muzzle Velocity | 660 m/s (2165 fps) |
| Muzzle Energy | 1742 J (1285 ft·lbf) |
| Effective Range | 300 m (328 yd) |
| Frame Material | Aluminum Alloy |
Primary Caliber: .300 AAC Blackout
The SIG Sauer MCX is a modular, multi-caliber rifle system developed by SIG Sauer in 2015. Unlike traditional AR-15 platforms, the MCX employs a short-stroke gas piston system with dual recoil springs, eliminating the need for a buffer tube and enabling a fully folding stock. This design allows for exceptional compactness and modularity, with users able to quickly change barrels, calibers, and configurations. The MCX was specifically designed to excel with .300 AAC Blackout for suppressed operat...
Country of Origin: United States