ISMI Mag Catch Spring – Premium Performance

The ISMI Mag Catch Spring gives your 1911 strong and consistent magazine catch tension. It helps the mag release feel smooth and positive. It also keeps the magazine seated with steady pressure, even during fast movement or heavy use. Because of this, your pistol maintains a solid, reliable feel every time you reload.

ISMI builds each spring from premium silicone chrome alloy, a material that outlasts old-style music wire. This alloy resists fatigue and holds its shape through high use. As a result, the spring delivers stable pressure and dependable performance.

ISMI also strengthens every spring through a detailed process. The company heat treats the alloy for uniform strength. It shot peens the surface to improve toughness. It then stress relieves the spring to maintain consistent force. These steps work together and create a spring built for long service life.

ISMI applies the same standards used for springs supplied to U.S. government-contracted machine guns. These systems run at extreme cycling rates, so the springs must perform under intense demands. The company’s founder also uses engineering knowledge gained from Indy car racing research to improve strength and durability.

With all of this behind it, the ISMI Mag Catch Spring gives your 1911 a clean, positive mag release feel and reliable long-term performance.

Warning: This product may be alloyed with trace amounts of lead and other elements which are known to the State of California to cause reproductive harm and cancer. To prevent exposure, do not alter the product by welding, grinding, etc. For more information, go to www.P65Warnings.ca.gov.