Originally Posted by
Nordic Marksman
Most guys change springs out between 3-5000k but some just wait for a problem to occur such as FTF/FTE's
Glock Recommends:
Gen3 - 2,500 - 3,000 rounds
Gen4 & 5 - 4,500 - 5,000
It’s important to remember that racking the slide is the same as firing with regards to the RSA, so it’s not just rounds fired.
Obviously, springs are very important in the proper operation of your pistol and as they age or "tire" they can affect the operation and lead to unsatisfactory performance.
Running worn springs my not cause malfunctions, but can cause battering and premature wear and eventual breakage. It's an inexpensive maintenance item.
Hope this helps