The SIG Sauer MCX Spear SBR is a compact, semi-automatic short-barreled rifle built for modularity and modern cartridge performance. This configuration is chambered in 6.8x51mm with a 13″ threaded barrel and ships with a single 20-round steel magazine. The barrel is cold hammer forged steel and threaded, with a coyote anodized finish. The rate of twist is 1:7.
As the civilian counterpart to the U.S. Army’s Next Generation Squad Weapon (NGSW), this short-barreled rifle brings unparalleled performance and adaptability to shooting enthusiasts and tactical professionals. This rifle features a robust short-stroke gas piston system, reducing recoil and ensuring consistent operation under diverse conditions, while fully ambidextrous controls provide seamless handling for all shooters, and the free-floating M-LOK handguard allows for extensive customization with a variety of accessories. The stock is a Magpul Push-Button Folding SL-M stock.
The SIG Sauer MCX-SPEAR platform offers a new level of modularity, allowing for caliber conversion between 6.8×51, 7.62×51 and 6.5 Creedmoor and 13″ or 16″ barrel length options. The MCX-SPEAR features a non-reciprocating side charging handle, a rear charging handle, fully ambidextrous controls, a 2-Stage Matchlite Duo Trigger and a free-floating M-LOK™ handguard. The listed weight is 8.90 lbs with magazine.





