The Magpul Rubber Butt-Pad 0.30" is the standard buttpad that comes with the CTR, and MOE Mil-Spec Magpul Stocks as well as all STR, ACS-L, ACS and UBR stocks. It's firm rubber is designed for enhanced shoulder grip and improved impact/drop protection. May also be installed on Commercial-Spec MOE and CTR stocks but may prohibit use of fully collapsed position.
