Buy ISMI Online

ISMI specializes in replacement recoil springs, magazine springs, and other small pistol parts crafted to match factory fit and function. Their parts are commonly used as direct replacements or as upgrades to restore reliable cycling and magazine performance. Products cover common handgun platforms and come in a range of spring tensions and configurations, including flat wire recoil springs and premium magazine springs. ISMI parts are aimed at shooters and armorers who need dependable, easily installed components to maintain or enhance firearm performance.

ISMI developed as a supplier of aftermarket replacement springs and small parts to meet the needs of shooters and gunsmiths. The brand grew by focusing on consistent manufacturing and compatibility with popular handgun platforms, building a catalog of parts that address common wear and performance issues.

Recoil springs for Glock and Beretta, premium magazine springs for 1911 and Beretta, and flat wire spring assemblies.

Choose ISMI when you need reliable, drop-in replacement springs and small parts that restore or improve handgun function.