The Magpul CTR is designed for fast, light action. This streamlined CTR (Compact/Type Restricted) stock is compatible with Mil-Spec sized carbine receivers and features a sturdy, ergonomic A-frame design. This drop-in replacement buttstock has rounded, snag-freeSpecifications and Features:Magpul AR-15 CTR Carbine Stock -Designed for Use with a Mil-Spec Buffer Tube (not included)-A-Frame Design is Snag-Free and Shields the Release Latch-Supplemental Friction Lock System Minimizes Wobble-Sloping Cheek WeldMaterial: SyntheticRecoil Pad: .30", Anti-Slip RubberSling Attachments: Rear Push-Button QD Ambidextrous 1.5" Swivel Mount; Rear/Bottom 1.25" Sling Loops; Toe Lanyard HoleCompatible with Magpul ASAP, ASAP QD, and other Receiver-Mount Sling AttachmentsFinish: BlackMade in the USAFits: Mil-Spec sized carbine receiver extension tubesDoes Not Fit: Commercial carbine receiver extension tubesNote: Friction lock performance may vary depending on the receiver extension's dimensional tolerances.