SIG Sauer MCX-SPEAR LT IR 5.56 NATO 11.5-Inch Pistol

The SIG Sauer MCX-SPEAR LT IR is a semi-automatic pistol chambered in 5.56 NATO with an 11.5-inch cold hammer forged carbon steel barrel. It features a gas-piston operating system, folding PCB brace, M-LOK alloy handguard, and Gen II NiR FDE Cerakote receiver finish.

Designed for adaptable range and field use, this configuration combines ambidextrous controls, an adjustable gas system, and a SIG Flat Blade Match trigger in a compact platform. The threaded barrel uses 1/2-28 threads and is paired with a QD flash hider.

Key Specifications

• The chambering is 5.56 NATO.
• The cold hammer forged carbon steel barrel measures 11.5 inches.
• The barrel has a 1:7 twist rate.
• The barrel threads measure 1/2-28.
• The action is semi-automatic.
• The operating system uses a gas piston.
• The pistol includes a folding PCB brace.
• The handguard features an M-LOK accessory rail.
• The receiver finish is Gen II NiR FDE Cerakote.
• The package includes one 30-round polymer magazine.

With its folding configuration, threaded barrel, adjustable gas system, and optics-ready design, the MCX-SPEAR LT IR offers a practical setup for shooters seeking a compact 5.56 NATO platform with configurable controls and established SIG Sauer features.

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