Additional Information
The patent-pending Magpul ACS (Adaptable Carbine/Storage) – Mil-Spec Model is a drop-in replacement butt-stock for AR15/M16 carbines using mil-spec sized 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 Magpul CTR, the ACS also features a supplemental friction lock system that minimizes wobble for enhanced weapon stability and accuracy. Dual, rear accessible, water-resistant battery storage tubes and an integral storage compartment in the butt of the stock provides multiple storage options.
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.
Features:
- Mounts on mil-spec sized carbine receiver extension tube (not included) from manufacturers such as Colt, Armalite, S&W, LMT, and others (please see the note below)
- Supplemental friction lock minimizes accuracy robbing wobble
- Premium chrome-silicon lock spring provides positive locking and long service life
- Sloping cheek weld provides a wide contact surface for user comfort
- Shielded release latch prevents snagging and accidental operation
- Replaceable 0.30" Rubber Butt-Pad offers an anti-slip surface and increases impact protection
- Compatible with Magpul ASAP and other receiver-mount sling attachments
- 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
- Sling Mounts: Mid - Optional QD Sling Mount accommodates up to 1.5" push-button swivels (NOTE: QD Sling Mount Sockets are sold separately.) Rear/Bottom: 1.00" sling loop
Specifications:
- Weight, Stock: 0.89 lb.
- Weight, w/Rec. Extension: 1.19 lb.
- Length, Stock: 7.95 in.
- LOP Adjustment Range: 3.25 in.
- LOP, M4 Collapsed: 11.75 in.
- LOP, M4 Extended: 15.00 in.
- Standard Rubber Butt-Pad, 0.30: 0.08 lb.
Optional Accessories:
- Extended Rubber Butt-Pad, 0.55": 0.11 lb. (may be used with either Mil-Spec or Commercial-Spec ACS stocks.)
- Enhanced Rubber Butt-Pad, 0.70": 0.13 lb. (may be used with either Mil-Spec or Commercial-Spec ACS stocks.)
- Push-button QD Sling Mount Sockets
Note:
- There are two basic sizes of M4 Carbine receiver extensions (buffer tubes): mil-spec and commercial-spec. If you have a mil-spec extension on your rifle, make sure to order the Mil-Spec. Please see the "Related Info" section above to determine which tube you have.
- Friction lock performance may vary depending on the receiver extension's dimensional tolerances.
