SIG SAUER MCX SPEAR-LT IR 5.56 AR Pistol
The SIG SAUER MCX SPEAR-LT IR represents a refined iteration of the MCX platform, engineered for enhanced operational flexibility and robust performance in a compact AR Pistol configuration. This model integrates a proven short-stroke gas piston system, delivering consistent cycling reliability across varying ammunition types and mitigating carbon fouling in the receiver group. The 11.5-inch barrel, chambered in 5.56x45mm NATO, optimizes maneuverability while maintaining ballistic effectiveness within its intended engagement parameters.
Key Features
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Gas Piston Operating System
Utilizes a short-stroke gas piston for reduced recoil, increased reliability, and cleaner operation compared to direct impingement systems. This design facilitates suppressed fire without extensive system modification.
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Modular Barrel System
Designed for rapid barrel interchangeability, supporting caliber conversions and barrel length optimization (additional components sold separately). The free-floating handguard ensures precision potential is maintained.
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Enhanced Ergonomics and Control
Features ambidextrous controls, including a selector, magazine release, and bolt catch, for intuitive manipulation. The updated handguard design offers improved interface with modern accessory mounting solutions and user comfort.
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Durable Construction
Constructed with an aluminum receiver and a robust steel barrel, the MCX SPEAR-LT IR is finished in Coyote for enhanced corrosion resistance and visual signature. The integrated top rail provides ample space for optic and accessory mounting.
Technical Specifications
- Model: SIG SAUER MCX SPEAR-LT IR
- Caliber: 5.56x45mm NATO
- Barrel Length: 11.5 inches
- Operating System: Short-Stroke Gas Piston
- Finish: Coyote
- Platform: AR Pistol
- Receiver Material: Aluminum
- Handguard: M-LOK compatible, Free-Floating
- Trigger: Two-Stage (typical for MCX-LT series)
- Muzzle Device: Flash Hider
- SKU: LIP|SIPMCX556N11BIR
