Drop-in replacement buttstock for AR15/M4
Cheek weld & 2 water-resistant battery tubes
Compact, reinforced polymer A-frame design
Shielded lever & friction locking system
Prevents slippage even with body armor or gear
The Magpul STR (Storage/Type Restricted) is a drop-in replacement buttstock for AR15/M4 carbines using mil-spec sized receiver extension tubes. This storage-capable version has improved cheek weld and 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.
Premium chrome-silicon lock spring provides positive locking and long-service life. Shielded release latch prevents snagging and accidental operation. The STR incorporates two integral sling loops, a reversible push-button QD sling mount, and a replaceable 0.30" rubber butt-pad which provides positive shoulder purchase to prevent slippage even with body armor or modular gear. Weight: 0.77 lbs. Maximum length: 7.30". Maximum width: 2.58".