A product that any serious airsoft would like to look into as it is something that allows one to quickly release the weapon in case of emergency. The Blue Force Gear Rapid Emergency Detachment Swivel (RED Swivel) replaces the standard push button sling swivel with a pull-knob release swivel. This can fit standard push button sockets and socket insets in handguards and stocks. Only 7 pounds of force is needed to release or install the RED Swivel. Check out the review by Gear Whores Anonymous if it suits your needs: