Sig Sauer MCX-SPEAR 7.62 NATO AR Pistol, 13 in Barrel, Coyote Anodized, Short-Stroke Piston, Folding Brace
This recent-release MCX-SPEAR AR pistol stands out with its 7.62mm NATO chambering, 13-inch factory barrel, and short-stroke gas piston system. It features a coyote anodized aluminum build, ambidextrous controls, a folding skeletonized brace on a 1913 rear interface, and SR-25/AR-10 pattern magazine compatibility. Markings include "SIGMCX-SPEAR MULTI-CALIBER" and "SIG SAUER INC NEWINGTON NH USA," underscoring its U.S. manufacture and lineage to the U.S. Army NGSW XM7/M7 program.
Condition
Overall Condition: Excellent condition, showing only faint signs of any prior use or handling.
Specific Condition Details: There is mild wear on the muzzle device; otherwise, the pistol is in great shape.
Bore Overall Condition: Excellent - Clean, mirror finish, no signs of wear.
Bore Rifling: Excellent Rifling - Sharp lands and grooves.
What's Included
- Sig Sauer MCX-SPEAR 7.62 NATO AR pistol (13 in barrel)
- 1x 25-round magazine
- 2x 20-round magazines
- Magazines are a mix of SR-25/AR-10 pattern types as shown: Lancer L7AWM with steel feed-lip inserts and Magpul PMAG LR/SR type
The MCX-SPEAR operating system uses a short-stroke gas piston with a rotating bolt, delivering the robust performance this series is known for. The two-stage match trigger, ambidextrous safety selector, and ambidextrous magazine release provide precise control and mirrored ergonomics.
A 13-inch steel barrel is factory-threaded 5/8-24 with a tapered shoulder and an installed 3-prong flash hider. The free-float M-LOK handguard (aluminum alloy) integrates a full-length 12-o'clock Picatinny rail for mounting compatible devices along the top.
Charging options include a non-reciprocating left-side charging handle and a rear charging handle, giving the shooter flexible manipulation choices. The brace is folding and skeletonized, mounted on a 1913 rear interface with a hinge for compact storage and transport.
The coyote anodized aluminum receivers deliver a durable finish and a distinctive appearance. Chambered in 7.62x51 NATO, this configuration accepts SR-25/AR-10 pattern magazines and carries a listed capacity of 25+1.