ACS™ M4 Carbine
Collapsible Butt-Stock – Military Model
The patent-pending
Magpul® ACS™ (Adaptable Carbine/Storage – Military Model) 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. 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 rubber butt-pad which gives positive shoulder purchase to
prevent slippage even with body armor or modular gear.
Note: There are two
basic types of M4 Carbine Receiver Extensions (buffer tubes): Mil-Spec and
Commercial. If you have a Commercial extension on your rifle, make sure to
order the soon-to-be released Commercial ACS™ (MAG371). For help identifying
which extension is on your rifle, please visit
www.magpul.com/tech/ctr.html
Made in USA
Features
Ø Mounts on Military
Carbine Receiver Extension tube (Not included)
Ø Shielded release
latch prevents snagging and accidental operation
Ø Premium
chrome-silicon lock spring provides positive locking and long service life
Ø Supplemental friction
lock eliminates accuracy robbing wobble*
Ø Sloping cheek weld provides
a wide contact surface for user comfort
Ø Replaceable 0.30”
Rubber Butt-Pad offers an anti-slip surface and increases impact protection
Ø Metal strike plate provides
a hardened striking point on toe of stock
Ø Two water-resistant
battery storage tubes located on the left and right sides of the stock
o
Each tube will store up to three CR123 lithium or two AA
batteries
o
Tubes are accessible from the rear via a tethered, hand-removable
rubber plug
Ø Storage compartment
in tail of stock with positive latching access door on right hand side
Ø Sling Mounts
o
Mid - Optional QD sling mounts accommodate up to 1.5” push-button
swivels
o
Rear / Bottom - 1.00” sling loop
Optional Accessories**
Ø Extended Rubber
Butt-Pad, 0.55”
Ø Enhanced Butt-Pad,
0.70”
Ø Push-button QD Sling
Mount Sockets
Specifications**
Ø ACS™ Military Carbine
Stock (w/ Rubber Butt-Pad, 0.30”)
o
Weight, Stock: 0.86 lb.
o
Weight, w/ Receiver Extension: 1.16 lb.
o
Length, Stock: 7.93 in.
o
LOP Adjustment Range: 3.3 in.
o
LOP, M4 Collapsed: 11.45 in.
o
LOP, M4 Extended: 14.75 in.
* Friction lock performance may vary depending
on the receiver extension’s dimensional tolerances.
** Specifications based on standard-length
(flat-back) M4 Carbine Receiver Extension and may vary depending on tube manufacturer.
Standard Rubber Butt-Pad, 0.30” weight: 0.09 lb. Optional Extended Rubber
Butt-Pad, 0.55” (weight: 0.12 lb.) or Enhanced Butt-Pad, 0.70” (weight: 0.15
lb.) may be used with either Mil-spec or Commercial ACS™ stocks. Butt-pads are
compatible with UBR™, ACS™, CTR™ and MOE™ carbine stocks.
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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