The Magpul STR (Storage/Type Restricted) Stock is a drop-in replacement buttstock for AR-15/M4 carbines using Mil-Spec receiver extensions. The STR features an improved cheek weld and a compact, reinforced polymer A-frame design. Two water resistant battery tubes each store (2) CR123A lithium or (2) AA batteries. A shielded operation lever and friction locking system prevent accidental operation and minimize excessive stock movement for enhanced weapon stability and accuracy. The STR incorporates two 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.
NOTE: Friction lock performance may vary depending on the host receiver extension dimensional tolerances.
Mil-Spec carbine receiver extension compatible
Battery storage tubes
Chrome silicon lock spring
Sloping cheek weld
Shielded release latch
Replaceable 0.30" rubber buttpad
Compatible with Magpul ASAP, ASAP QD, and other receiver-mount sling attachments
Reversible Type 1 sling mount fits up to 1.5" push-button QD swivels (swivel not included)