Gaither 2" Rapid Air Release (RAR) Valve • Push Button Release Trigger • Reversible Handle for Left or Right Handed Preference • New Barrel • Used to Upgrade 2" Port GT-BB3L2/BB6L2/BB10L2 GEN 2 Bead Bazookas / GT-BB03LM/06LM/12LM Tommy Gun Style Bead Bazookas / GB-5M Bead Seater With Manual Release • RAR is Serviceable With GT-BBVRK Valve Repair Kit