Sig Sauer MCX-SPEAR LT IR Pistol 5.56mm 30rd Magazine(1) 11.5" Threaded Barrel Coyote Finish Folding Brace
$2,499.99
The Sig Sauer MCX-SPEAR LT IR Pistol in 5.56 NATO features an 11.5-inch cold hammer forged barrel and operates on a semi-auto gas piston system, making it an excellent choice for tactical applications and home defense. This pistol includes a folding brace and comes with one 30-round polymer magazine for enhanced versatility and performance.
Out of stock
Features:
- CALIBER: 5.56 NATO
- BARREL LENGTH: 11.5 in [292.1 mm]
- BARREL MATERIAL: Cold Hammer Forged Carbon Steel
- TWIST RATE: 1:07
- THREADS: 1/2 in – 28 tpi
- ACTION TYPE: Semi-Auto
- OPERATING SYSTEM: Gas Piston
- STOCK TYPE: PCB
- GRIP TYPE: Polymer
- TRIGGER TYPE: SIG Flat Blade Match
- TRIGGER SHAPE: Flat
- FOREND TYPE: Alloy
- ACCESSORY RAIL: M-LOK
- MAG TYPE: AR-15
- MAGS INCLUDED: (1) 30rd Polymer Mag
- RECEIVER FINISH: Gen II NiR FDE Cerakote
- OVERALL LENGTH: 29.75 in
- FOLDED LENGTH: 26.25 in
- OVERALL WIDTH: 2.9 in (73.7 mm)
- HEIGHT: 7.5 in (190.5 mm)
- WEIGHT: 6.68 lb w/Magazine
- FORWARD ASSIST: Yes
- ADJUSTABLE GAS SYSTEM: Yes
| Weight | 8.200 lbs |
|---|---|
| Dimensions | 46.250 × 11.500 × 4.400 in |
| Manufacturer | Sig Sauer |
| Barrel Length | 11.5 |
| Capacity | 30+1 |
| Action | Semi-Auto |
| Finish | Coyote |
| Frame Material | Aluminum |
| Caliber | 5.56 NATO |
PROCESSING & SHIPPING
Orders typically ship within 1–3 business days (Monday–Friday) after payment and all required documentation are received. Time to arrival after shipment depends on the carrier. Shipping method is at BT Gun Company’s discretion; ammunition and oversized accessories are charged at actual shipping cost. We do not ship to Hawaii or Alaska.
FIREARM TRANSFERS
- Firearms must ship to a licensed FFL dealer of your choosing — confirm with them first that they can accept the transfer.
- Your receiving FFL will need to email their license to [email protected] before we can ship.
- Inspect your firearm at your FFL’s location before signing ATF Form 4473 — once signed, the firearm is considered accepted.
You’re responsible for knowing the firearms laws in your state before ordering. For complete shipping, returns, and restocking-fee policy details, see our Shipping & Returns page.

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