Drillpro Universal Combination Gun Trigger Lock 3-Dial Combination Trigger Lock Password Gun Lock for Firearms Pistol Rifle This is the CCOPUSA 3-Dial Combination Gun Trigger Lock for Firearms Pistol Rifle 9993508. Fits on handguns, rifles and shotguns 3 digit combination ensures a 1000 unique ways to keep your gun secure Securely locks trigger to prevent use; requires just 1/2" clearance between trigger, trigger guard