Every recoil spring has a service life. It’s one of the few wear items on a Glock that isn’t obvious when it’s failing — there’s no warning light, no sudden stoppage. The slide just starts behaving a little differently until one day something doesn’t cycle right. Knowing when to swap it out before that happens is basic maintenance, and the in …
read more

Short answer: slides and recoil springs are generation-locked, barrels mostly swap between Gen 3 and Gen 4 (Gen 5 is its own platform), and magazines run across all three. The chart below covers every major 9mm part for the Glock 17, Glock 19, and Glock 26 across Gen 3, Gen 4, and Gen 5 — so you know exactly what fits before you order. Get the slide and frame generation right a …
read more