The AR-STONER Fixed Stock Kit is ideal either as a replacement to a damaged stock system or to transition from a 6 position stock. The Magpul Fixed MOE Rifle Stock is a lightweight, durable upgrade for any AR-15/M16 or 308-based AR platform rifle that is a drop-in replacement for an A1 or A2 buttstock, utilizing the standard rifle-length receiver extension tube without an A2 spacer.The stock's design offers ergonomic and functional enhancements over a traditional fixed stock, including an improved cheek weld, anti-slip rubber recoil pad, spacious internal storage compartment, and a swept back underside providing an ideal surface over which to hook the support hand for increased stabilization in the prone shooting position. FeaturesFixed LengthRemovable Recoil Pad Gives Access to Interior Storage CompartmentCompatible w/ Magpul PRS Extended Recoil Pad, Polymer Rail Section, and UBR QD Sling Swivel Cups (Not Included)AR-STONER Standard Rifle Length Buffer Tube Assembly Included