Description
The Authentic MCX-SPEAR 6.8X51 is Sig Sauer’s next-generation modular rifle system, designed for the US Army’s Next Generation Squad Weapon program. This civilian-legal variant features a durable 6.8x51mm (.277 Fury) chambering, a hard-anodized aluminum upper receiver, and a cold hammer-forged chrome-lined barrel. Its advanced short-stroke piston system and folding/telescoping stock provide exceptional reliability and adaptability for demanding use.
Key Features
- Chambered in the high-pressure 6.8x51mm (.277 Fury) cartridge for superior ballistics.
- Patented short-stroke gas piston system ensures reliable operation with minimal fouling.
- Folding and telescoping SIG MINI stock for compact storage and adjustable length of pull.
- Free-floating, cold hammer-forged barrel with a chrome-lined bore for extended service life.
- Full ambidextrous controls including safety selector, magazine release, and bolt catch.
Specifications
| Caliber / Type | 6.8x51mm (.277 Fury) Rifle |
|---|---|
| Material | Aluminum Upper, Steel Barrel |
| Finish | Hard-Anodized Black |
| Compatibility | MCX-SPEAR platform; uses proprietary 6.8x51mm magazines. |
| Weight | Approx. 8.5 lbs (unloaded) |
The 6.8x51mm cartridge utilizes a hybrid case with a stainless steel base to withstand significantly higher pressures (80,000 PSI) than standard .308 Winchester, delivering flatter trajectories and increased downrange energy. The MCX-SPEAR’s robust piston system is engineered to handle this pressure, making it a purpose-built platform for long-range precision and terminal performance where standard calibers fall short.
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