Ultimate Arms Gear Number Combination Secure Steel & Zinc Bodied Firearm Guns Protective Safety Trigger Block Locks Fits GLOCK 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 Pistol Handgun Revolver Rifle Shotgun Secure Trigger Lock Is Universally Designed to Fit Most Handguns As Well As Rifles and Shotguns. Securely Locks Trigger To Prevent Use; Requires Just 1/2" Clearance Between Trigger & Trigger Guard. Superior Durability and Security It Is Constructed of Hardened Steel and Zinc While It Is Fitted with Innovative Rubber Pads to Shield the Firearm from Scratching or Marring Whatsoever. When It Comes To Preventing Unauthorized Use Of Your Firearm, Ultimate Arms Gear Is The Choice for an Affordable, Simple, and Safe Solution. Non-Rust Zinc Alloy Pin, All Metal Housing & Mechanism; 2-1/2 x 1-1/2", Weight 7 oz. Custom-Set your Own 3-Digit Lock Code, Easy to Attach/Remove, Simple to Store When Not In Use. Also Fits GLOCK 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39