Out of stock
SKU: MPIMAG371BLK
UPC: 873750001043
The Magpul ACS Carbine Stock in Commercial Black is a drop-in replacement buttstock engineered for AR15 and M4 carbines equipped with commercial-spec receiver extension tubes. This adaptable stock combines modular storage capability with field-proven retention, making it a practical choice for operators who demand both accessibility and secure mounting on duty or training cycles.
The ACS distinguishes itself through dual rear-accessible battery storage tubes and an integral storage compartment integrated into the butt pad—essential for extended operations where spare batteries and small maintenance items require weatherproof stowage. The anti-snag release latch prevents accidental stock collapse during movement or equipment handling, while a supplemental friction lock system minimizes rattle and maintains lock integrity under dynamic conditions. The design accommodates the recoil impulse characteristics of intermediate rifle cartridges without separation or creep under cyclic fire, a critical factor in carbine performance.
This stock is specified for patrol officers, tactical team operators, and serious rifle competitors running commercial-spec AR platforms. Whether configured for intermediate-range duty rifles or precision training builds, the ACS provides the modularity needed for mission-specific load-outs without requiring proprietary tools or extensive armorer work. The black finish resists corrosion in variable environments and presents a clean profile on professional equipment.
Magpul's ACS represents a mid-tier option within the commercial-spec stock category, positioned between fixed stocks and premium adjustable systems. Commercial-spec receivers remain the most common tube standard in the installed base of AR-platform carbines, making this stock directly compatible with the majority of duty and civilian rifles without adapter hardware.
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