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Why Your Glock Won't Return to Battery After a Slide Swap: The 5 Most Common Causes

15th Apr 2026

You finished swapping slides on your Glock, racked it, and the slide stopped a hair short of fully closing. Or worse — it closes under recoil at the range and hangs up on the next round. The pistol isn’t “broken.” Almost every out-of-battery issue after an aftermarket slide swap comes down to one of five causes, and none of them require gunsmithing to di …
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Zaffiri Precision ZPS Slides: Compatibility and What to Know

Posted by 3CR Tactical on 2nd Jul 2024

Zaffiri Precision ZPS Slides: Compatibility and What to Know
Zaffiri Precision makes CNC-machined Glock slides under the ZPS label — RMR-ready, heavily serrated, with tight machining tolerances. If you are researching a Zaffiri build or trying to understand the ZPS lineup, here is what the model differences actually mean and what frames they work with. ZPS.2 vs. ZPS.3: What Actually Differs Both the ZPS.2 and ZPS.3 are stripped G19 Gen …
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Glock 17 vs Glock 19: Which One Is Right for Your Build

Posted by 3CR Tactical on 26th Jun 2024

Glock 17 vs Glock 19: Which One Is Right for Your Build
The Glock 17 and Glock 19 share the same frame design, the same trigger system, and the same manual of arms. The difference is size. That size difference has real consequences for slide selection, holster fit, and how the gun feels in your hand. Here is the breakdown. Dimensions: What Actually Differs Glock 17: 4.49-inch barrel, 8.03-inch overall length, full-size grip frame …
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