SIG MCX Spear-LT IR 5.56 NATO 16" Rifle

The Modern Tactical Rifle Standard

The SIG MCX Spear-LT IR represents the evolution of a platform trusted by special operations forces worldwide. Built on the proven MCX legacy, this rifle delivers the performance and reliability demanded by professional shooters and serious civilian operators alike.

Thermal Signature Reduction

The defining feature of the IR model is its Gen II Cerakote coating, specifically engineered to reduce infrared signature under thermal imaging and night vision equipment. This isn't marketing hyperbole—it's a genuine capability advantage for those who need it. The coating also provides superior wear and corrosion resistance, protecting your investment through years of hard use.

Ergonomic Design for Any Mission

Fully ambidextrous controls mean left and right-handed shooters operate the rifle with equal efficiency. The telescoping folding stock collapses to just 26.25 inches, making the MCX Spear-LT IR exceptionally portable without sacrificing the full 35-inch length when extended for precision shooting.

Proven Mechanical Advantage

• Gas piston operation with adjustable system for reliability across ammunition variations
• Cold hammer-forged 16" barrel with 1:7 twist rate, optimized for 5.56 NATO performance
• SIG flat-blade match trigger for clean, predictable breaks
• M-LOK accessory rail for modern optics and tactical attachments
• Suppressor-ready with 1/2-28 threads and quick-disconnect hider
• One 30-round AR-15 compatible magazine included

Specifications at a Glance

Weight: 7.5 pounds | Barrel: 16 inches | Caliber: 5.56 NATO | Action: Semi-automatic | Stock: Telescoping/Folding | Receiver: Gen II NiR Cerakote

The MCX Spear-LT IR is a rifle for shooters who understand that capability and reliability aren't negotiable.