Sig Saur MCX-SPEAR LT Rifle 5.56mm 28rd Magazine 16" Barrel M-LOK Handguard Folding Minimalist Plus Stock

The Sig Sauer MCX-SPEAR LT is a 5.56mm rifle built on the proven MCX platform, engineered for shooters who demand modularity, reliability, and real-world performance in a compact package. With a 16-inch barrel, M-LOK handguard, and folding Minimalist Plus stock, this rifle adapts to your mission—whether you're running drills at the range, hunting, or training for personal defense. The MCX-SPEAR LT strips away unnecessary bulk without compromising the accuracy and durability that made the MCX a favorite among professionals and serious sport shooters.

The 5.56mm chambering pairs accuracy with manageable recoil and cost-effective ammunition availability. The folding stock collapses the profile when you need it compact—critical for vehicle storage, tight shooting positions, or transport—and locks solidly when deployed for a cheek-weld-ready shooting position. The M-LOK handguard gives you genuine accessory flexibility: mount lights, lasers, vertical grips, or rail sections exactly where you need them, not where a fixed design forces them.

A 28-round magazine rounds out the package, feeding reliable 5.56mm rounds without the feeding quirks that plague lesser designs. If you've been eyeing the MCX platform but wanted something more stripped-down and portable, the SPEAR LT delivers.

Key Features

• 5.56mm chambering—accurate, controllable, and ammunition-abundant
• 16-inch barrel for compact profile and velocity balance
• Folding Minimalist Plus stock for space-efficient storage and rapid deployment
• M-LOK handguard for true modular accessory mounting
• 28-round magazine included
• Proven MCX reliability and ergonomics

Specifications

Frequently Asked Questions

Is the MCX-SPEAR LT really compact with the stock folded?

Yes. The Minimalist Plus folding stock collapses the rifle's length significantly, making it easy to stash in a bag, vehicle, or storage safe without sacrificing cheek-weld geometry when you deploy it for shooting.

Can I add lights and other accessories to the M-LOK handguard?

Absolutely. The M-LOK system is industry-standard and supports a wide range of lights, lasers, grips, rail sections, and other tactical accessories. You configure the handguard to your specific mission.

What's included in the box?

The rifle ships with one 28-round magazine. Additional magazines and accessories are sold separately.

Is the MCX-SPEAR LT suitable for hunting?

The 5.56mm chambering and 16-inch barrel deliver the velocity and accuracy needed for hunting applications within 5.56's typical effective range. Consult your local regulations to confirm 5.56 is legal for your intended game.