WILSON COMBAT 1911 .45 ACP Full-Size 17lb Flat-Wire Recoil Spring Kit (614)

The longest lasting handgun recoil spring made - Wilson Combat's testing has indicated that these springs have a service life up to ten times greater than conventional coil springs. Improves cycling and overall operation.

Recommended Use: Full-Size 5" .45 ACP shooting 230 gr. hardball equivalent or standard pressure JHP self-defense ammunition with a power factor of 175,000 to 195,000 (Velocity x Bullet Weight = Power Factor).

Average Service Life: 40,000 rounds.