The MSA-QD (MOE Sling Attachment) attaches directly to MOE Hand Guards and Forends, providing a forward sling attachment point for push-button QD slings such as the MS4A(R) GEN 2. The MSA is Melonite(TM) finished steel for wear and corrosion resistance. Made in U.S.A. Features Designed specifically for use with MOEA(R)Hand Guards Durable steel construction Case hardened and finished with Melonite(TM) for extreme resistance to wear and corrosion Low profile design Anti-rotation feature prevents swivels from spinning NOTE: MOE accessory slot must be enlarged by user to allow installation. Instructions and hole saw included, and a drill is required for install.