The MOE Fixed Carbine Stock – Mil-Spec Model (Magpul Original Equipment) provides an inexpensive” fixed” non-collapsing stock option for mil-spec size carbine-length buffer tubes. The MOE Fixed Carbine Stock has a slim profile” improved cheek weld” and multiple sling attachment options” and is compatible with ASAP Plates and PRS Extended Rubber Butt-Pad. Installation is non-armorer and does not require the castle nut or lock plate to be removed. Made in U.S.A.