Sig Sauer MCX Spear Rifle .308 Win 20rd Magazine 16″ Barrel FDE
$3,999.99
The Sig Sauer MCX Spear Rifle in .308 Win features a 16″ barrel and is the civilian version of the U.S. Army’s XM7 rifle, designed for maximum flexibility with its non-reciprocating side and rear charging handle. This rifle includes fully ambidextrous controls, making it an excellent choice for tactical applications and versatile shooting positions.
6 in stock
The MCX-SPEAR the civilian version of the U.S. Army’s XM7 rifle.
Features:
- Civilian version of the U.S. Army’s new XM7 rifle
- Available in 7.62×51 6.5 Creedmoor and coming soon in 277 SIG FURY
- Non-reciprocating side and rear charging handle for maximum flexibility in shooting position and optics capability
- Fully ambidextrous controls including ambidextrous bolt catch and bolt release
- Integrated stainless steel QD mounts in the lower receiver for easy secure attachment of slings
- Coyote tan anodized
- Interchangeable barrel for easy caliber conversion
- 2-position adjustable gas valve for suppressed or unsuppressed use
- Includes SIG SAUER SLH and SLX suppressor-ready QD mount flash hider
- Matchlite Duo Trigger for a clean crisp break
- Folding 6 position Magpul SL-M stock
- Ships with (1) 20 round magazine
| Weight | 11.600 lbs |
|---|---|
| Dimensions | 46.250 × 11.250 × 4.250 in |
| Manufacturer | Sig Sauer |
| Caliber | .308 Win |
| Barrel Length | 16.0 |
| Capacity | 20rd |
| Action | Semi-automatic |
| Finish | FDE |
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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