Sig Sauer MCX-SPEAR LT IR 5.56 NATO 16″ Coyote
About this product
The SIG SAUER MCX-SPEAR LT IR is a semi-automatic modern sporting rifle built around a lightweight MCX-LT chassis and a reduced infrared-signature Gen II NiR Cerakote finish. It features a 16″ threaded cold hammer-forged carbon steel barrel, an M-LOK handguard and SIG’s telescoping/folding stock for compact transport and quick deployment. The rifle is optics-ready and supplied with fully ambidextrous controls and a flat-blade match trigger for consistent, user-friendly operation.
Key Specifications
- The cartridge is .223 Rem / 5.56 NATO.
- The barrel measures 16 inches and is threaded 1/2 in – 28 tpi.
- The action type is Semi-Auto.
- The barrel material is Cold Hammer Forged Carbon Steel.
- The receiver finish is Gen II NiR Cerakote (reduced IR signature).
- The stock is a telescoping/folding design for compact storage.
- The trigger is a SIG Flat Blade Match style trigger.
- The rifling twist rate is 1:7.
- The handguard supports M-LOK accessories.
- The unloaded weight is approximately 7.5 lb.
Built to SIG SAUER’s MCX-LT specifications with a focus on reduced infrared signature and modular adaptability, the MCX-SPEAR LT IR combines reliable construction, modern accessory compatibility and compact folding geometry. Its lightweight profile, match-style trigger and optics-ready receiver make it suitable for a variety of practical shooting applications where reduced signature and portability are priorities.
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Specs at a glance
Key attributes
| upc | 798681699698 |
| manufacturer | SIG SAUER |
| manufacturer part number | RMCX-556N-16B-IR |
| action | Semi-Auto |
| atf type | MODERN SPORTING RIFLE |
| barrel length | 16'' |
| caliber/gauge | .223 REM/5.56 NATO |
| capacity | 30 |
| color | Flat Dark Earth |
| length | 35'' |
| magazine included | 1 x 30-Round |
| model | MCX |
| number of magazines | 1 28 rd. |
| package height | 4.2 |
| package width | 11.4 |
| product type | AR |
| safety | Ambidextrous Lever |
| shipping weight | 10.45 |
| sights | No Sights / Optics Ready |
| state restriction (ca) | NO DIRECT SHIP TO CALIFORNIA |
| state restriction (ri) | NO DIRECT SHIP TO RHODE ISLAND |
| state restriction (wa) | NO DIRECT SHIP TO WASHINGTON |