Return spring: Replace it before it breaks

Sluggish extractions at the end of a session, cases falling back onto the slide, and a sluggish return to the magazine when cold: three symptoms, but a single cause in the vast majority of cases. The return spring is a consumable part, not a part that lasts a lifetime.

Actual thresholds, by platform

The manuals are optimistic. Community data provides more conservative figures: 4,000 rounds for a 9×19 competition pistol (CZ Shadow 2, Prodigy), 5,000 for a polymer service pistol (Glock, PDP), and 3,000 for heavy use with high-power ammunition. Make a note of the round count when you set it up—that’s exactly what Armory automates.

Check Without Disassembling: The Simple Method

Compare a new spring with the old one side by side: if the free length has decreased by more than 5%, replace it. Another reliable indicator: if the cases now drop to less than one meter when they used to go two meters, the slide velocity has dropped. A spring costs €15; a puller broken due to overuse costs ten times as much.

Maintenance That Prevents Breakdowns

Record each replacement in the weapon’s maintenance log along with the current odometer reading. The next time you reach the same mileage, you’ll know if your replacement schedule is right: if you replace them too early, you’re throwing away springs that are still in good condition; if you wait too long, you’ll experience performance issues right in the middle of a match. That’s exactly what the wear-part thresholds on your Armory sheet are for.