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 …
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An RMR-cut slide for a Glock 17 or Glock 19 will accept dozens of different optics, and the price spread between the cheapest and the most expensive runs past ten to one. That range is the actual problem: nothing on the shelf is obviously wrong, and the things that separate an entry-tier dot from a duty-grade one — housing rigidity, dot crispness under recoil, how the ele …
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Buyers ask this exact question before every aftermarket Glock 19 slide purchase: Gen 3, Gen 4, or Gen 5 — what actually fits? The short answer is that Gen 3 slides fit Gen 1 through Gen 3 frames, Gen 4 slides fit Gen 4 frames, Gen 5 slides fit Gen 5 frames, and cross-generation swaps are possible but require the matching recoil spring assembly and sometimes a striker swap …
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