SIG Sauer Spear 7.62x51 16" 20-Round Rifle

The SIG Sauer MCX Spear 7.62×51 NATO 16" semi-automatic rifle with 20-round magazine capacity represents a modern approach to intermediate-caliber duty and training systems. Chambered in the full-power 7.62×51 NATO cartridge, this rifle delivers the ballistic performance and penetration characteristics demanded in professional operator environments, while the 16-inch barrel maintains maneuverability in confined spaces without sacrificing velocity from the larger round.

The MCX Spear platform combines a quick-detach flash hider, M-LOK handguard for modular accessory mounting, and ambidextrous controls—including bolt catch/release and rear and side charging handle options—for true left and right-hand operation. The two-position adjustable gas valve allows tuning for suppressed or unsuppressed fire, while the six-position push-button folding/collapsing stock adapts to different shooting positions and transport requirements. The anodized coyote finish provides corrosion resistance suitable for extended field deployment, and the threaded 16-inch barrel accepts standard suppressors and muzzle devices.

Operators, law enforcement trainers, and serious rifle shooters select the MCX Spear platform when duty demands intermediate-rifle performance with the ergonomic sophistication and modularity of modern short-stroke piston systems. The 7.62×51 NATO chambering suits precision shooting, vehicle-mounted applications, and training environments where full-power rifle ballistics and accuracy matter. The MCX Spear's compact profile—supported by the folding stock—accommodates mounted operations and vehicle transit while maintaining the velocity and energy critical to larger-caliber terminal performance.