Magpul STR Mil-Spec

The Magpul STR (Storage/Type Restricted) is a drop-in replacement buttstock for AR15/M4 carbines using mil-spec sized receiver extension tubes. A storage-capable version of the CTR®, the STR has improved cheek weld and two water resistant battery tubes on a compact, reinforced polymer A-frame design.

A shielded operation lever and supplemental friction locking system prevent accidental operation and minimize excessive stock movement for enhanced weapon stability and accuracy.* The STR incorporates two integral sling loops, a reversible push-button QD sling mount, and a replaceable 0.30″ thick rubber butt-pad which provides positive shoulder purchase to prevent slippage even with body armor or modular gear.

Made in U.S.A.

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)
• 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
  Sling Mounts
• Rear – Reversible Type 1 Sling Mount fits up to 1.5″ push-button QD swivels (swivel not included)
• Rear/Bottom – 1.25″ sling loops

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.

Specs
SPECIFICATIONS**

• STR Carbine Stock, Mil-Spec
• Weight: 12.3 oz.
• Weight, w/receiver extension: 16.3 oz.
• Length, max: 7.3 in.
• Width, max: 2.6 in.
• LOP Adjustment Range: 3.3 in.
• LOP, M4 Collapsed: ~10.9 in.
• LOP, M4 Extended: ~14.2 in.
  * 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.