The STR is a drop-in replacemtent Buttstock for AR15 / M4 / M16 type carbines with Mil-Spec sized type 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 supplement 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 rubber butt-pad which provides positive shoulder purchase to prevent slippage even with body armor or modular gear.
