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)
Two water-resistant battery storage tubes located on the left and right sides of the stock
Each tube will store up to two (2) CR123A lithium or AA batteries
Tubes are accessible from the rear in any stock position via a hand-removable rubber plug
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®, ASAP®-QD, and other receiver-mount sling attachments
Rear – Reversible Type 1 Sling Mount fits up to 1.5″ push-button QD swivels (swivel not included)
Rear/Bottom – 1.25″ sling loops
STR, Mil-Spec (stock configuration)
Weight: 0.77 lb.
Weight, w/ Rec. Extension: 1.02 lb.
Length, Maximum: 7.30 in.
Width, Maximum: 2.58 in.
LOP Adjustment Range: 3.25 in.
LOP, M4 Collapsed: 11.10 in.
LOP, M4 Extended: 14.35 in.
NOTE: There are two basic sizes of M4 Carbine receiver extensions (buffer tubes): mil-spec and commercial-spec. If you have a commercial-spec extension on your rifle, make sure to order the Commercial-Spec STR.
* Friction lock performance may vary depending on the host 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″ or the optional Extended Rubber Butt-Pad, 0.55″ and Enhanced Butt-Pad, 0.70″ may be used with either Mil-Spec or Commercial-Spec STR stocks.
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