A stuck cartridge in your AR-15 renders your weapon useless until cleared. Carbine instructors train students to slam the butt of the gun against the ground to free stuck casings causing potential damage to your firearm. The patented LevAR ratcheting charging handle clears stuck cartridges with ease. Simply deploy the ratcheting arm and pull back to eject the casing. The LevAR installs in seconds and is compatible with any standard AR-15 upper receiver.