Home » Shop » Sig Sauer MCX Spear, Semi-automatic AR, 7.62 NATO, 16″ Threaded Barrel, Ambidextrous Bolt Catch/Release
Home » Shop » Sig Sauer MCX Spear, Semi-automatic AR, 7.62 NATO, 16″ Threaded Barrel, Ambidextrous Bolt Catch/Release
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$4,379.99Original price was: $4,379.99.$3,999.99Current price is: $3,999.99.
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Sig Sauer MCX Spear is a semi-automatic AR-style rifle chambered in 7.62 NATO with a 16" threaded barrel. It suits shooters who want a 7.62 NATO rifle with ambidextrous controls and a folding stock for range days, field use or a home-defense or hunting build.
Chambered in 7.62 NATO, semi-automatic
16" threaded barrel with SLX/SLH QD flash hider
20-round capacity
6 position push-button folding/collapsing stock
Ambidextrous bolt catch/release
2 position adjustable gas valve
SKU: SGRSPEAR-762-16B · Mfr part #: RSPEAR-762-16B · UPC: 798681674022
The Sig Sauer MCX Spear is a semi-automatic AR-style rifle in 7.62 NATO with a 16″ threaded barrel. This one comes in an anodized Coyote finish and holds 20 rounds. Sig built the Spear from its entry in the U.S. Army’s Next Generation Squad Weapon program, which was meant to replace the M4A1.
The controls are set up for both hands. The bolt catch/release is ambidextrous, and the manufacturer lists an ambidextrous safety as well. You get two charging handles, one on the side and one at the rear, so you can run the rifle from either shoulder. The stock folds and collapses and locks into 6 positions with a push button. A 2 position adjustable gas valve lets you change how the rifle cycles. The barrel is chrome lined with a DLC treatment, and the trigger is a 2-stage match design.
Who it fits
This rifle suits shooters who want a 7.62 NATO rifle in a platform that feels like an AR. Left-handed shooters get the same access to the controls as right-handed ones. The folding stock helps if you need to store or carry the rifle in a tighter space.
The M-LOK handguard takes lights, grips, bipods and slings made for that mounting system. Most owners will add an optic and a good sling. A spare 20-round magazine is a sensible buy too. The SLX/SLH QD flash hider can come off the threaded muzzle if you want to run a different muzzle device. Check that any device you pick matches the muzzle threading.
Order online and we ship it to the licensed FFL dealer you choose near you — see how buying a gun online works. Western Sport has been a licensed FFL/SOT dealer since 2007, and everything we sell carries the full manufacturer warranty. Questions before you order? Send us a message.
Frequently Asked Questions
Q: What caliber is the Sig Sauer MCX Spear?
A: 7.62 NATO. This model is a semi-automatic rifle with a 16" barrel.
Q: How many rounds does the MCX Spear hold?
A: 20 rounds. That is the capacity listed for this model.
Q: Does the MCX Spear have a threaded barrel?
A: Yes. The 16" barrel is threaded and carries an SLX/SLH QD flash hider.
Q: Is the Sig MCX Spear ambidextrous?
A: Yes. The bolt catch/release and safety are ambidextrous. It also has charging handles on the side and at the rear.
Q: Does the MCX Spear have a folding stock?
A: Yes. The stock folds and collapses, and it adjusts to 6 positions with a push button.
Warranty and Manufacturer
Covered by the Sig Sauer factory warranty; warranty terms come from Sig Sauer.
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