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The Hi-Power is a beloved old-school pistol, but anyone who has spent time behind one knows the factory trigger can feel heavy and a little rough compared to a tuned 1911. Cylinder & Slide has been addressing that exact complaint for decades, and the #25-A Spring Kit is their answer for pre-1991 Browning Hi-Power pistols chambered in 9mm and .40 S&W. Instead of replacing parts or sending your gun out for a full trigger job, this kit swaps three key springs to bring the pull weight down by approximately 2.5 pounds, giving you a noticeably lighter and cleaner break.
Unlike some of the other Cylinder & Slide spring options built for later Hi-Power models, the #25-A is the full three-spring package made specifically for guns produced before 1991. Inside you get a 22 lb hammer spring, a reduced power trigger return spring, and a reduced power firing pin spring, all made from quality spring steel to hold up under regular use. Because the pre-91 Hi-Power has a slightly different internal setup than later production guns, this kit is not interchangeable with the #25-B, so double check your pistol's manufacture date before ordering.
This is a straightforward parts swap for anyone comfortable with detail stripping a Hi-Power, but Cylinder & Slide themselves recommend having a qualified gunsmith handle installation. Getting spring tension and hammer geometry right matters here, since an incorrectly seated spring can cause binding or inconsistent ignition. Once it's dialed in properly though, the difference in trigger feel is easy to notice, especially for target and competition shooters who want a crisper, lighter squeeze without changing anything else about the gun.
This kit has been a go-to upgrade for Hi-Power owners for years because it's inexpensive, easy to source, and delivers a real improvement without altering the pistol's original parts beyond the springs themselves. If you're restoring an older Hi-Power to shoot regularly or just want to take the edge off that stock trigger pull, the #25-A Spring Kit is a solid, no-frills way to get there.
It replaces three internal springs, the hammer spring, trigger return spring, and firing pin spring, with lighter tuned versions. Together they reduce the overall trigger pull weight by about 2.5 pounds compared to the factory setup. The end result is a smoother, lighter break without changing any other parts on the pistol.
The #25-A is built specifically for Hi-Power pistols made before 1991, while the #25-B is designed for 1991 and later production guns. The internal geometry differs slightly between the two eras, so using the wrong kit can cause fitting or function issues. Check your pistol's manufacture date or serial number range before ordering to make sure you get the right one.
Plenty of Hi-Power owners with mechanical experience have installed spring kits like this on their own, but Cylinder & Slide recommends having a trained gunsmith handle it. Spring tension and hammer fit need to be correct or you can end up with binding or inconsistent function. If you're not confident field stripping and reassembling your Hi-Power, it's worth having a pro do the swap.
The #25-A kit is designed with target and competition shooting in mind, and the lighter springs are best suited to a range gun rather than a daily carry pistol. Reduced power firing pin and hammer springs can occasionally affect primer ignition with certain ammunition. If reliability is your top priority, it's worth running a good amount of ammo through the gun after installation to confirm everything cycles the way you expect.
| UPC | 000000002516 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | CS0025A |
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