Etronic  Gun Lock G7K Keyed Gun Trigger Lock, Keyed Different Ultra-high performance Tumbler cylinder for maximum pick resistance Features positive locking with Adjustable ratchet mechanism. Easy to attach and lock Steel and zinc body for maximum durability. Discourages theft and protects valuable guns from tampering Cushioned rubber pads protect gun's finish from marring or Scratching The Etronic gun trigger lock fits many handguns, rifles and shotguns