Put in the Fulceom trigger kit and I must say glock is the most user friendly pistol to work on. After the trigger kit and using the different striker springs I have a flawless safe and reliable 3.25 lb trigger. Only one gripe! The fulcrum kit has the straight ejector that is a big gen 4 problem. Brass in the forehead... Easy fix by swapping the factory ejector onto the fulcrum housing. No big deal but for $179.00 the fulcrum should come with the updated part. BTW, forgot to mention its a gen 4, 22... Working on this pistol makes me feel like a master gunsmith due to its simplicity. IM NOT!