Sig Sauer MCX Spear-LT IR 5.56 11.5in FDE 10rd
About this product
The Sig Sauer MCX Spear-LT IR is a compact, modular 5.56 NATO pistol designed for maneuverability and adaptability in close-quarters and tactical use. It pairs an 11.5-inch threaded, cold hammer-forged carbon steel barrel with SIG’s Gen II NiR FDE Cerakote to reduce thermal signature and enhance corrosion resistance. The platform emphasizes modularity with interchangeable barrels, an M-LOK handguard, and a folding pistol brace for reduced transport length. Controls and ergonomics are built for ambidextrous handling and quick accessory integration.
Key Specifications
- The firearm is chambered in .223 Rem / 5.56 NATO.
- The barrel measures 11.5 inches and is steel threaded.
- The barrel material is cold hammer-forged carbon steel.
- The twist rate is 1:7.
- The muzzle uses a QD flash hider and the barrel threads are 1/2 in-28 tpi.
- The action is Semi-Auto operating on a gas piston system.
- The trigger is a Flat Blade Match.
- The supplied magazine capacity is 10 rounds with one polymer magazine included.
- The receiver finish is Gen II NiR FDE Cerakote.
- The firearm includes a folding pistol brace with push-button hinge and an M-LOK handguard.
Engineered for robust performance and modular flexibility, the MCX Spear-LT IR combines a short, well-appointed barrel with SIG’s durable finish and user-focused controls. Its compact profile and accessory-ready interface make it a practical choice for shooters who value adaptability and straightforward functionality in a modern 5.56 platform.
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Specs at a glance
Key attributes
| upc | 798681699650 |
| manufacturer | SIG SAUER |
| manufacturer part number | PMCX-556N-11B-IR-10 |
| action | Semi-Auto |
| atf type | Pistol |
| barrel length | 11.5" |
| caliber/gauge | .223 REM/5.56 NATO |
| capacity | 10 + 1 |
| color | Flat Dark Earth |
| length | 46.2000 |
| model | MCX |
| number of magazines | 1 10 rd. |
| package height | 4.0 |
| package width | 11.0 |
| product type | Semi-Auto Pistol |
| safety | Ambidextrous Lever |
| shipping weight | 9.2 |
| sights | No Sights / Optics Ready |
| sights type | NONE |
| state restriction (ca) | NO DIRECT SHIP TO CALIFORNIA |