Yes — you can change the slide on a Glock at home, no gunsmith required. The slide comes off the same way it does for a normal field strip: clear the gun, rotate the takedown lever, slide it forward off the rails. The catch is compatibility: a Gen 3 slide does not fit a Gen 4 frame, a Glock 19 slide does not fit a Glock 17 frame, and a Glock 23 slide is .40 S&W — not interchang …
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