My department replaces all Gen 4 G17 and G19 at the 5000 round mark, which is the recommended interval per Glock USA.
!0,000 out of a recoil spring is way beyond the normal expected life. Did you notice a reduction in recoil impulse when you replaced the recoil spring? I am guessing...."Yes" to that one.
Edit To Add: I just read that you have not replaced the spring, so disregard the "Recoil Impulse" question.
!0,000 out of a recoil spring is way beyond the normal expected life. Did you notice a reduction in recoil impulse when you replaced the recoil spring? I am guessing...."Yes" to that one.
Edit To Add: I just read that you have not replaced the spring, so disregard the "Recoil Impulse" question.