The Magpul CTR (Compact/Type Restricted) model is a drop-in replacement buttstock for AR15 / M16 carbines, and comes in Mil-Spec and Commercial-Spec variants. Designed for light, fast action, the streamlined A-frame profile avoids snagging and shields the release latch to prevent accidental activation.The CTR also features a supplemental friction lock system that minimizes excessive stock movement for enhanced weapon stability and an ambidextrous QD sling mount that will accept any push-button sling swivel. The Mil-Spec model includes a standard 0.3" thick rubber butt-pad, which provides positive shoulder purchase to prevent slippage even with body armor or modular gear.FEATURES:Supplemental friction lock minimizes accuracy robbing wobble*Sloping cheek weld combines a slim profile with user comfortShielded release latch prevents snagging and accidental operationPremium chrome-silicon lock spring provides positive locking and long service lifeSide mounting slots accept optional cheek risers for NON AR15/M4 applicationsRemovable 0.30" Rubber Butt-Pad offers an anti-slip surface and increases impact protectionCompatible with Magpul ASAP®, ASAP® QD and other receiver-mount sling attachmentsSling MountsRear – Push-button QD swivel sling mount accommodates up to 1.5" swivels (ambidextrous)Rear/Bottom – 1.25" sling loopsToe – Lanyard hole for custom para-cord rigs