The HIPERFIRE AK Trigger Hammer Pins feature innovative chamfered edges for effortless push-through installation into any AK receiver eliminating the frustration of aligning hammer and trigger holes.HIPERFIRE AK4/AK74 Trigger Hammer Pins - Set of 2Chamfered edges for easy push-through installationLonger pin design for easier removal during disassemblyCompatible with stock pattern AK hammers and sleeved trigger subassembliesUS patent pending pin installation chamfersPerfect for gunsmiths and AK enthusiasts looking to streamline trigger group installation and maintenance on AK4 and AK74 pattern rifles.