The Grovtec M-LOK Non-Rotating Flanged Push Button Base provides a secure, reliable forward attachment point for push-button QD slings on to M-LOK™ compatible handguards. Anti-rotation design prevents swivels from spinning. Includes all hardware for installation Precision machined from lightweight aluminum Low profile design reduces snagging The Grovtec M-LOK Non-Rotating Flanged Push Button Base attaches easily to any handguard with M-LOK accessory mounting slots - no modifications required – makes carrying your rifle or carbine easier.