Sig Sauer MCX Spear | 7.62×51 NATO | 16″ | RSPEAR-762-16B

The Sig Sauer MCX Spear is a civilian modern sporting rifle built from the company’s submission to the U.S. Army Next Generation Squad Weapon program. This semi-automatic rifle ships in Coyote (Flat Dark Earth) and includes ambidextrous controls, rear and side charging handles, a 6-position folding Magpul stock, and a single 20-round magazine. For an optic under $1,000 that pairs well with the MCX Spear for medium-range work, consider a 1-6×24 low-power variable optic such as the Sig Sauer Whiskey3 1-6×24 for quick target acquisition and versatile magnification.

Applicable uses include tactical training and medium-range precision shooting, as well as field hunting where a robust 7.62×51 platform is desired.

Product Specifications

• The manufacturer is Sig Sauer.
• The model is MCX Spear (MCX-SPEAR).
• The manufacturer part number is RSPEAR-762-16B.
• The caliber is 7.62×51 NATO (.308 Win).
• The action is Semi-Automatic.
• The barrel length is 16 inches.
• The barrel twist rate is 1:10.
• The standard magazine capacity is 20 rounds.
• The rifle ships with one 20-round magazine.
• The stock is a 6-position folding Magpul SL-M style.
• The finish / color is Flat Dark Earth (Coyote Anodized).
• The weight with magazine installed is 9.2 lbs.
• The hand orientation is Right Hand.
• The muzzle uses a QD flash hider with 5/8-24 tpi thread pattern.
• The UPC is 798681674022.

The MCX Spear brings military-derived ergonomics and modern materials to a commercial platform—ambidextrous controls, multiple charging options, and an adjustable gas system give shooters practical adaptability for suppressed or unsuppressed use. Its 16″ barrel and 7.62×51 chambering deliver substantial downrange performance while the folding stock and integrated sling mounts enhance transportability and system modularity. This configuration is aimed at experienced shooters looking for a purpose-built, full-featured modern sporting rifle in a coyote finish.

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