The ACS (Adaptive Carbine/Storage) is a drop-in replacement for the standard M4 stock body, offering a comfortable sloping cheek weld, integral storage compartment, battery storage tubes, and a friction locking mechanism to eliminate excessive movement.

INTERNAL STORAGE COMPARTMENT - The ACS features an internal storage compartment large enough for basic weapon maintenance/cleaning supplies, spare parts, or other small items.

BATTERY STORAGE TUBES - The ACS has two battery tubes, allowing for storage of six (6) CR123 or four (4) AA batteries in total. Batteries are accessible via rubber caps without removing or adjusting the stock.

FRICTION LOCK - Similar to the CTR stock, the ACS features a friction locking mechanism to secure the stock and eliminate excess wobble and movement.

The ACS comes standard with a 0.30" thick rubber butt-pad which provides positive shoulder purchase to prevent slippage even with body armor or modular gear.

Compatible Markers:
- Tacamo Hurricane
- Tacamo MKP
- Tippmann Phenom
- Tippmann X7

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