Replacement magazine spring for Glock pistols. High quality heat treated magazine springs made for Factory Glock magazines with or without extensions. When extending a factory Glock magazine, it is imperative that you use a longer magazine springs. Our extension kits comes with the correct longer spring. If you have other manufacturer's extended pads you can also utilize our magazine springs.
10-coil Duty Spring :
EDC Glock 9mm/40S&W (recommended with our H600-GC extension)
11 Coil Duty Spring :
Factory "Standard" length Glock magazines such as G17, G22, G20, G21, G37, G31
Blueline Glock 19/23 (included in the H-KC02 kit)
EDC Glock 9mm/40S&W (recommended with our H680-GS Carry Pro Plus 3)
13 Coils Duty Spring :
Blueline Glock 17/34/45 (Comes in the H-KC01 kit)
Blueline Glock 21/41 (Comes in the H-KC04 kit)
13 Coil Competition Spring:
Competition Glock 17/34/45 with Plus 6 Extensions for USPSA 141.25mm overall length