Glock Firing Pin Spring STD Silver (24,5N) (7. J1)

Some special types and qualities of ammunition require special firing pin springs. GLOCK offers springs, that additionally change the trigger characteristic. STANDARD FIRING PIN SPRING (Silver) (Factory 5.5 lb Spring Weight) Standard Equipment in all Glock Pistols STRONG FIRING PIN SPRING 28 Newton (Red) Popular equipment with law enforcement agencies for use with special ammunition.. EXTRA STRONG FIRING PIN SPRING 31 Newton (Blue) Special spring for special ammunition with extremely hard primers.