Sig Sauer MCX Spear 6.8x51mm 16" Rifle 20+1 Coyote Anodized

The Sig Sauer MCX Spear represents the next evolution in modern rifle platforms, chambered in the powerful 6.8x51mm cartridge that delivers superior ballistic performance over traditional 5.56 NATO. This 16-inch barrel configuration provides optimal velocity while maintaining maneuverability for tactical applications and precision shooting scenarios.

What Makes This Different

The MCX Spear utilizes Sig's proven short-stroke gas piston system instead of direct impingement, resulting in cleaner operation and reduced maintenance requirements. The 6.8x51mm chambering offers approximately 20% more energy than 5.56 NATO at extended ranges, with effective performance beyond 600 yards. The folding telescoping stock reduces overall length to 26.5 inches when folded, while the free-floating M-LOK handguard accommodates accessories without affecting barrel harmonics.

Key Features

• 6.8x51mm chambering delivers enhanced long-range ballistic performance
• 16-inch cold hammer-forged barrel with 1:8 twist rate optimized for heavy projectiles
• Short-stroke gas piston system reduces fouling and heat transfer to receiver
• Folding telescoping stock with adjustable length of pull from 11.5" to 15"
• 15-inch free-floating M-LOK handguard with full-length top rail
• Magpul SL-M polymer grip provides enhanced ergonomics and control
• Coyote anodized finish offers corrosion resistance and reduced signature

Field performance demonstrates consistent sub-MOA accuracy with match-grade ammunition, while the gas piston system maintains reliability through extended firing schedules without cleaning. The platform excels in precision rifle applications, competitive shooting, and professional use where enhanced terminal ballistics are required. Weather sealing at critical junctions ensures function in adverse conditions, while the quick-change barrel system allows caliber conversions.

Technical Specs

• Caliber: 6.8x51mm (.277 FURY)
• Barrel Length: 16 inches, cold hammer-forged
• Overall Length: 35.5" extended, 26.5" folded
• Weight: 8.1 pounds unloaded
• Magazine Capacity: 20+1 rounds
• Handguard: 15-inch M-LOK free-floating
• Stock: Folding telescoping with adjustable LOP
• Finish: Coyote Type III hard anodized
• Country of Origin: USA

The MCX Spear addresses the growing demand for enhanced ballistic performance in a proven platform architecture. Professional users and serious shooters recognize the advantages of the 6.8x51mm cartridge combined with Sig's refined operating system.