SIG Sauer MCX-SPEAR 6.8×51

Overview

The SIG Sauer MCX-SPEAR 6.8×51 brings unmatched modularity, precision, and battlefield-proven reliability to the civilian market, offering the next evolution of semi-automatic rifle technology derived directly from the U.S. Army's Next Generation Squad Weapon (NGSW) program.

Key Features

Advanced Caliber

Chambered in 6.8×51mm, the MCX-SPEAR provides superior ballistic performance compared to traditional 7.62×51mm NATO and 5.56×45mm NATO platforms.

Two-Position Adjustable Gas System

Short-stroke gas piston system with two-position adjustability ensures optimal performance across suppressed and unsuppressed firing modes.

Fully Ambidextrous Controls

Features ambidextrous bolt catch, magazine release, and safety selector for complete operational flexibility.

Rugged Monolithic Upper Receiver

Machined from aluminum, the monolithic upper receiver integrates a free-floating barrel for superior durability and consistent accuracy.

Folding and Adjustable Stock

The folding stock minimizes the rifle’s length for ease of transport and storage, while adjustable features ensure shooter comfort.

Specifications

• Caliber: 6.8×51mm
• Barrel Length: 406mm
• Overall Length: 876mm
• Length Folded: 700mm
• Weight: 4128g
• Operating System: Short-stroke gas piston, two-position adjustable
• Material: Aluminum receiver, steel barrel
• Finish: Coyote anodized
• Magazine Capacity: 20 rounds
• Thread: 5/8×24 UNEF
• Stock: Folding, adjustable
• Compatibility: M-LOK handguard, suppressor-ready design