At a glance: Allows left AND right handed charging/clearing Picatinny - mounts virtually any optic Fits any standard RugerA(R) 10/22A(R) or Charger(TM) No gunsmithing required (uses standard screws) This precision machined picatinny rail provides RugerA(R) 10/22A(R) owners with a serious "Advantage". In addition to mounting virtually any optic it also features a unique left sided charging handle that actuates but never interferes with the right sided charging handle. This allows shooters, plinkers and competitors alike, to clear jams or charge the gun without ever losing trigger and stock position. Turn the tables and get your Advantage t Mfg: Tandemkross