Sig Sauer MCX SPEAR-LT, Semi-automatic Rifle, 16″ Barrel, Cerakote Finish, 13″ Free Float M-LOK Handguard

Product Description

The Sig Sauer MCX SPEAR-LT is a semi-automatic rifle in 7.62x39mm with a 16″ barrel. It feeds from a 28-round magazine and comes in a Flat Dark Earth Cerakote finish. The model number is RMCX-762R-16B-IR.

The “LT” in the name points to a lighter build. Sig Sauer gives this rifle a lightened handguard with attachment screws for added rigidity, and a lightened profile barrel with improved accuracy. The handguard is a 13″ free float M-LOK design, so the barrel stays clear of it. The finish is a reduced IR signature Gen II NIR Cerakote, which matters if you run night-vision gear.

Controls, Stock, and Trigger

Controls are fully ambidextrous, including an ambidextrous bolt catch and release on the lower. The minimalist side-folding stock has a push-button hinge and folds down for a compact package. The flatblade match trigger is AR15 style compatible, so you can swap in other triggers of that type. The QD flash hider is suppressor-ready for SIG suppressors.

This rifle suits shooters who want a handy 7.62×39 for range days, field use, or home defense, and who need it to work from either shoulder. For gear, look at M-LOK accessories such as grips, lights, and sling mounts, plus an optic, a good sling, a SIG suppressor, and extra magazines.

Sig Sauer MCX SPEAR-LT, Semi-automatic Rifle, 16" Barrel, Cerakote Finish, 13" Free Float M-LOK Handguard Specifications

What’s in the Box

1 Magazine (per the manufacturer’s listing).

Fits and Pairs With

• Fiocchi Ammunition Fiocchi Rifle, 7.62X39, 123 Grain, 50 Round Box
• Federal PowerShok, 7.62X39, 123 Grain, Soft Point, 20 Round Box
• Belom 7.62X39mm, 123 Grain, 20 Round Box
• Sterling 7.62X39mm, 123 Grain, 20 Round Box
• Hornady BLACK, 762×39, 123 Grain, 20 Round Box
• Frontier Cartridge Frontier, 7.62×39, 123 Grain, 20 Round Box

Ordering from Western Sport

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-LT?

A: 7.62x39mm. This model has a 16" barrel and is a semi-automatic rifle.

Q: How many rounds does the MCX SPEAR-LT hold?

A: 28 rounds. That is the capacity of the magazine for this model.

Q: Is the MCX SPEAR-LT ambidextrous?

A: Yes. Sig Sauer lists fully ambidextrous controls, including an ambidextrous bolt catch and release on the lower.

Q: Does the MCX SPEAR-LT have a folding stock?

A: Yes. It has a minimalist side-folding stock with a push-button hinge.

Q: Is the MCX SPEAR-LT suppressor ready?

A: Yes. It has a SIG suppressor-ready QD flash hider on the 16" barrel.

Warranty and Manufacturer

Covered by the Sig Sauer factory warranty; warranty terms come from Sig Sauer.

Additional information