MM Firefly Catch Spring

The catch spring works together with the catch plate to keep the Firefly's pump action locked at each end of its stroke, providing the tension that holds the catch engaged until you deliberately release it. It's a small part, and like the other small Firefly hardware pieces, it's easy to lose track of during a deep clean or when swapping the catch plate.

The MM Firefly Catch Spring is the direct stock replacement, built to the original tension and size so it seats back into the shell exactly where the factory spring did. If your pump grip feels like it's not holding at the back of the stroke, or the catch isn't engaging consistently, a lost or worn catch spring is worth checking before assuming the catch plate itself has failed.