ISMI Magazine Spring for Sig P365XL P365 X Macro 17 Round Mags, Chrome Silicon

The ISMI Magazine Spring for Sig Sauer P365XL, P365 X-Macro 17 Round upgrades the stock magazine spring with a Chrome Silicon replacement. ISMI springs are heat treated, shot-peened, and stress relieved after winding to enhance performance and durability. The benefit of Chrome Silicon is that it has a higher yield point of material than OEM springs, which are made from music wire. Chrome silicon springs have 10x the life of traditional music wire springs, and they hold much better tolerances during compression and cycling. The result is a spring that doesn’t take as much initial setup as an OEM spring and exerts more load for the entire lifespan of the spring. Upgrade your firearm with ISMI springs to improve your firearm’s performance and reliability.

INSTALLATION WARNING: Magazine Floor Base Plates & Extension Devices are secured by Spring Tension & can cause serious injury if improperly handled. It is recommended that you use Safety Glasses when removing or installing this product.