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Magpul ACS M4 Carbine Collapsible Butt-Stock (Mil-Spec)

$85.99 List price: $86.99 (You save $1.00) Free Shipping & Free Returns


The Magpul ACS M4 Carbine Collapsible Butt-Stock (Mil-Spec) is a drop-in replacement butt-stock for carbines using MIL-SPEC receiver extension tubes. A streamlined, anti-snag profile shields the release latch to prevent accidental activation and the extra-power lock mechanism uses a premium chrome-silicon spring to avert auto-collapse failure by resisting spring relaxation. Similar to the CTR™, the ACS also features a supplemental friction lock system that eliminates wobble* for enhanced weapon stability and accuracy. The ACS comes standard with a rubber butt-pad which gives positive shoulder purchase to prevent slippage even with body armor or modular gear.

  • Reinforced, heat-resistant Polymer construction
  • Mounts on Military Carbine Receiver Extension tube (Not Included)
  • Shielded release latch prevents snagging and accidental operation
  • Premium chrome-silicon lock spring provides positive locking and long service life
  • Supplemental friction lock eliminates accuracy robbing wobble*
  • Sloping cheek weld provides a wide contact surface for user comfort
  • Replaceable 0.30" Rubber Butt-Pad offers an anti-slip surface and increases impact protection
  • Metal strike plate provides a hardened striking point on toe of stock
  • Two water-resistant battery storage tubes located on the left and right sides of the stock
  • Each tube will store up to three CR123 lithium or two AA batteries
  • Tubes are accessible from the rear via a tethered, hand-removable rubber plug
  • Storage compartment in tail of stock with positive latching access door on right hand side
  • Rear/Bottom 1.00" sling loop
  • LENGTH: 7.93"
  • LOP, M4 COLLAPSED: 11.45"
  • LOP, M4 EXTENDED: 14.75"
  • WEIGHT, STOCK: 0.86 lb.
  • Made in the USA

COLORS: Black, Flat Dark Earth, OD, Foliage or Grey

*Friction lock performance may vary depending on the receiver extension's dimensional tolerances

This item or some of its components cannot be exported from the United States of America without a valid export permit from the U.S. State Dept. due to ITAR restrictions.


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