Sig Sauer MCX-SPEAR LT IR Pistol 5.56 NATO 11.5in 30rd

The Sig Sauer MCX-SPEAR LT IR is a compact, semi-automatic AR-style pistol chambered in 5.56 NATO with an 11.5-inch cold hammer-forged barrel. It features SIG's Gen II NiR Flat Dark Earth Cerakote finish for corrosion and wear resistance and ships optics-ready with a folding pistol brace. The platform uses a gas-piston operating system and includes one 30‑round polymer magazine, making it a configurable option for range use and compact applications.

Key Specifications

• Chambered in 5.56 NATO.
• The barrel measures 11.5 in.
• Action type is Semi-Auto.
• Operating on a Gas Piston system.
• Receiver finish is Gen II NiR FDE Cerakote.
• Includes (1) 30rd Polymer Magazine.
• Equipped with a Folding Brace w/Push Button Hinge.
• Barrel twist rate is 1:7.
• Fore-end uses an M-LOK accessory rail and has a PICATINNY optic footprint.
• Weight is listed as 6.68 lb w/Magazine.

Purpose-built for adaptable, compact performance, the MCX-SPEAR LT IR combines corrosion-resistant Cerakote surfaces, an adjustable gas system and interchangeable-barrel capability to support multiple configurations. The M-LOK fore-end and Picatinny optic footprint accommodate common accessories, while the included 30‑round magazine and folding brace keep the platform practical for range and compact-duty applications.