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

With a shielded operation lever and a supplemental friction locking system, the STR prevents accidental operation and minimizes excessive stock movement for heightened weapon stability and accuracy. It also includes two integral sling loops, a reversible push-button QD sling mount, and a replaceable 0.30″ thick rubber butt-pad, ensuring a positive shoulder purchase and preventing slippage even with body armor or modular gear. Proudly made in the U.S.A.

Features :

• Multi use AR Stock
• Mounts on Mil-Spec sized carbine receiver extension tube
• Two water-resistant battery storage tubes located on the left and right sides
• Shielded release latch to prevent snagging and accidental operation
• Supplemental friction lock minimizes accuracy-robbing wobble
• Sloping cheek weld combines a slim profile with user comfort