Sig Sauer OEM MCX-SPEAR Multi-Caliber 20-Round Steel Magazine (Coyote) - MAG-SPEAR-MULTI-COY - UPC 798681707904
Product Description
The Sig Sauer Factory OEM MCX-SPEAR Multi-Caliber 20-Round Magazine (MAG-SPEAR-MULTI-COY) is an authentic military-grade steel feeding device engineered specifically for the Sig Sauer MCX-SPEAR platform and the U.S. Army's Next Generation Squad Weapon (NGSW) XM7 rifle system. Designed to handle the severe pressures and aggressive bolt velocities of modern full-power rifle cartridges, this magazine delivers flawless double-stack feeding under harsh operational environments.
Constructed from high-tensile stamped steel with a corrosion-resistant Coyote Tan finish, the MAG-SPEAR-MULTI-COY accepts long-range projectile loadings with overall cartridge lengths (COAL) up to 2.850". Its geometry is purpose-built to ensure increased feeding stability and smooth feeding performance when running suppressed, preventing bolt override or misfeeds caused by elevated backpressure.
Engineered for seamless multi-caliber versatility, this single magazine profile reliably feeds .277 Sig Fury (6.8x51mm), 7.62x51mm NATO (.308 Winchester), and 6.5 Creedmoor chamberings. Built directly by Sig Sauer to rigorous military specifications, this 20-round magazine delivers factory-fresh reliability, crisp drop-free ejection, and maximum structural durability for your MCX-SPEAR setup.
*Armorer Bench Notes & Real-World Staging Guidance:
Fitment Matrix: Compatible with Sig Sauer MCX-SPEAR rifles and large-frame SR-25 / AR-10 pattern magwells. Multi-caliber compatible with .277 Sig Fury / 6.8x51mm, 7.62x51mm NATO / .308 Win, and 6.5 Creedmoor. Note: Accepts match-grade and military cartridge loadings up to 2.850" overall length.
- Verify the firearm is completely clear, safe, and unloaded before inserting or seating magazines.
- Load cartridges straight down between feed lips, pushing each round back until the rim seats firmly against the rear steel wall.
- Insert magazine straight up into the MCX-SPEAR magwell until the catch engages with an audible click; perform a downward tug test to verify positive lockup.
Key Features
- U.S. Army NGSW / XM7 Lineage: Developed and tested to meet the extreme durability and feeding standards required by military operations.
- Multi-Caliber Versatility: Seamlessly feeds .277 Sig Fury (6.8x51mm), 7.62x51mm NATO (.308 Win), and 6.5 Creedmoor cartridges.
- Suppressor-Optimized Geometry: Engineered to provide consistent cartridge elevation and timing under high suppressed backpressure.
- High-Strength Stamped Steel: Heavy-gauge steel construction resists feed-lip deformation under severe impact or drop conditions.
- 2.850" COAL Capacity: Accommodates heavy long-range OTM and match projectiles without interior binding.
- Coyote Tan Finish: Severe-duty finish protects against corrosion, abrasion, and environmental elements while matching OEM rifle aesthetics.
Product Specifications
- Brand: Sig Sauer
- Model: MCX-SPEAR Multi-Caliber 20-Round Magazine
- MPN / SKU: MAG-SPEAR-MULTI-COY
- UPC: 798681707904
- Caliber Compatibility: .277 Sig Fury / 6.8x51mm, 7.62x51mm NATO / .308 Win, 6.5 Creedmoor
- Capacity: 20 Rounds
- Platform Compatibility: Sig Sauer MCX-SPEAR / SR-25 / AR-10 Magwells
- Max COAL: 2.850 Inches
- Body Material: Stamped Steel
- Color / Finish: Coyote Tan
- Mass: ~8.5 oz (240.9 g)
