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When the U.S. Army picked Sig's Next Generation Squad Weapon to replace the M4, the civilian world took notice. The MCX Spear Pistol is the direct descendant of that program, a semi-auto version of the XM7 chambered in 7.62×51 NATO with a 13-inch cold hammer forged barrel. At 24.5 inches overall, it packs .308-class punch into a platform that stores easy and moves fast, and the short-stroke gas piston system keeps it running cleaner and cooler than a direct impingement gun ever will.
The control layout is where this gun really earns its keep. You get two non-reciprocating charging handles, one at the rear like a standard AR and one on the left side, so you can run the bolt without breaking your cheek weld or moving your optic. Every control is fully ambidextrous, including the safety, bolt catch and release, and magazine release. Left-handed folks get a genuinely equal experience here, not an afterthought. The two-stage match trigger breaks clean, and the two-position adjustable gas valve lets you tune the gun for suppressed or unsuppressed fire with a quick flip.
Sig ships the Spear with a QD flash hider that mates directly with their SLX and SLH suppressors, and the 5/8×24 threaded muzzle plays nice with plenty of other cans too. The free-float alloy handguard carries a full-length Picatinny rail up top and M-LOK slots for lights, lasers, and grips, while integrated stainless steel QD sling mounts in the lower receiver keep your sling attachment solid. The flat top comes optics ready, so bring the glass you want to run.
The coyote anodized aluminum frame looks sharp and wears well, and the interchangeable barrel system means caliber conversions down the road are a real option, not a gunsmith project. It feeds from AR-10 pattern magazines and ships with one 20-rounder. For anyone who wants a piece of the NGSW story in a compact 7.62 platform, this is the one to get your hands on.
It's the civilian semi-auto version of the rifle Sig developed for the Army's Next Generation Squad Weapon program, which was adopted as the XM7. This pistol variant is chambered in 7.62×51 NATO rather than the military's 6.8×51 hybrid cartridge, but the core platform, controls, and gas piston operating system carry straight over.
Yes, this gun is chambered for 7.62×51 NATO and will also run commercial .308 Winchester loads. That gives you a huge range of ammo choices, from affordable ball for range days to premium match and hunting loads.
Very much so. It ships with Sig's QD flash hider that accepts SLX and SLH series suppressors directly, and the barrel is threaded 5/8×24 with a tapered shoulder for other muzzle devices. The two-position adjustable gas valve lets you dial the gun in for suppressed or unsuppressed shooting.
It feeds from AR-10 pattern magazines, sometimes called SR-25 pattern, and ships with one 20-round polymer mag. That pattern is widely available, so finding spares from Magpul and other makers is easy.
| UPC | 798681681372 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | PSPEAR-762-13B |
| Action | |
| ATF Type | MODERN SPORTING RIFLE |
| Barrel Finish | Black |
| Barrel Length | 13'' |
| Caliber/Gauge | .308 / 7.62 NATO |
| Capacity | 20+1-Round |
| Color | Coyote |
| Length | 24.5'' |
| Magazine Included | 1 x 20-Round |
| Model | |
| Number of Magazines | 1 20 rd. |
| Package Height | 4.2 |
| Package Width | 11.4 |
| Product Type | AR |
| Safety | Thumb |
| Shipping Weight | 10.4 |
| Sights | No Sights / Optics Ready |
| State Restriction (CA) | NO DIRECT SHIP TO CALIFORNIA |
| State Restriction (RI) | NO DIRECT SHIP TO RHODE ISLAND |
| State Restriction (WA) | NO DIRECT SHIP TO WASHINGTON |
| Thread Pattern | 5/8"-24 tpi |
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