Fits over the discharge outlet of the Vari-Nozzle used on both USN and USCG vessels. Muzzle includes two straps with snap fasteners to secure the bail in the forward position & prevents activation. High visibility orange sleeve and yellow straps provide visual indication to remove the muzzle after training/drill. Two sizes. Small fits standard US Navy vari-nozzle with brass bail, and the large fits Akron vari-nozzle with plastic bail.