The name says it all. Ergonomic grips make one handed changing of handguards on AR15s and M16s a breeze. Simply hook to the empty magwell, place the contoured rods around the Delta Ring, squeeze the handles and pull down to compress the Delta Ring. Remove the handguard with your free hand. It s that simple. Product Specifications Contoured rods snugly fit Delta Ring Mag-hook fits securely in empty magwell Coated rods protect delta ring finish Ergonomic handles require less hand strength One piece steel rod provides strength for stubborn Delta Rings