The Magpul STR (Storage/Type Restricted) Carbine Stock – Mil-Spec 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 the USA.

Specs

Collection: Collapsible Storage AR Stocks

Platform: AR10, AR15, M4, M16, M110, SR25

Compatibility: Mil-Spec sized carbine receiver extension tube (not included) from manufacturers such as Colt, Armalite, S&W, LMT, and others*

LOP, M4 Collapsed: ~10.7 in.

LOP, M4 Extended: ~14.0 in.

LOP Adjustment Range: 3.3 in.

Length, max: 7.3 in.

Height, max: 5.2 in.

Weight: 12.6 oz.

Weight, w/ receiver extension: ~16.4 oz.

Width, max: 2.6 in.

Width of Butt, max: 1.7 in.