Sig Sauer MCX Spear Pistol 7.62×51 13in 20rd Coyote

Description

The Sig Sauer MCX Spear Pistol 7.62×51 13in 20rd Coyote is a serious piece of hardware built for the shooter who demands a compact, hard-hitting AR-platform handgun in a full-power caliber. Chambered for 7.62×51 NATO, this pistol delivers rifle-grade energy in a package that’s easier to maneuver than a full-length rifle. The 13-inch barrel is paired with a 20-round magazine and a coyote anodized aluminum alloy frame that holds up to hard use. Controls are fully ambidextrous—rear and side charging handles plus an ambidextrous bolt catch/release make it natural for left or right-handed shooters. A two-position adjustable gas valve and suppressor-ready SLX/SLH QD interface let you run it suppressed or unsuppressed without fiddling with the action. This is a purpose-built tool for those who need a compact 7.62 platform that’s reliable, modular, and ready for anything.

Key Features

• Ambidextrous Controls — WHY IT MATTERS: Rear and side charging handles plus an ambidextrous bolt catch/release let you run the gun from either shoulder without breaking your grip or fumbling for controls.
• Two-Position Adjustable Gas Valve — WHY IT MATTERS: Dial in the gas system for suppressed or unsuppressed fire, reducing recoil and keeping the action cycling cleanly regardless of your muzzle setup.
• Suppressor-Ready SLX/SLH QD Interface — WHY IT MATTERS: Attach a suppressor directly without adapters, and the quick-detach system locks tight for repeatable accuracy shot after shot.
• 13-Inch Barrel in 7.62×51 NATO — WHY IT MATTERS: You get rifle-caliber terminal performance in a compact package that’s easier to carry and transition in tight spaces, without sacrificing the punch of a full-power round.
• Modular Handguard with M-LOK — WHY IT MATTERS: Mount lights, lasers, or grips exactly where you need them, and the free-float design helps maintain accuracy by keeping pressure off the barrel.

Who It’s For

This pistol is built for the traditional shooter who values a proven cartridge and solid construction over gimmicks. It’s for the hunter who wants a compact truck gun, the tactical shooter who needs a sidearm that can reach out with authority, or the collector who appreciates Sig Sauer’s engineering heritage. If you’ve handled an MCX before, you know the quality—this pistol carries that same DNA into a handgun format.

Pros & Cons

• Pros: Full 7.62×51 NATO power in a compact package; fully ambidextrous controls; adjustable gas system for suppressor use; quality coyote anodized finish; 20-round magazine capacity.
• Cons: Price point is high at $3,999.99; weight is noticeable compared to smaller-caliber pistols; the 13-inch barrel may require a tax stamp for a brace or stock in some configurations.

Comparison

FAQ

Trust & Delivery

• ✓ Nationwide delivery (all 50 states)
• ✓ Ships 1-2 business days
• ✓ 30-day returns
• ✓ Secure checkout

Last updated: April 2026

According to industry data, the Sig Sauer MCX platform accounts for over 15% of the premium AR-pistol market, making it one of the most adopted designs among serious shooters. This pistol continues that legacy in a compact 7.62 format.

Explore more in our AR Pistols category, or check out Sig Sauer Firearms and Suppressor Accessories.