The Glock 19X and Glock 45 confuse buyers the moment they start shopping for a new slide, because both pistols break the usual "full-size or compact" rule. They pair a full-size Glock 17-length frame with a compact Glock 19-length slide and barrel. That crossover is the whole point of the design, but it also means half the slides and parts you find online are the wrong length o …
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Barrel profile is the contour of an AR-15 barrel — the amount of steel left along its length — and it decides how much your rifle weighs, how fast it heats up, and where it balances. It is a separate spec from barrel length. A 16-inch barrel can weigh anywhere from about 1.5 pounds to over 2.5 pounds depending on its profile, and that difference is felt every time y …
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You press the trigger once and the Glock fires twice. Sometimes it's a fast "burp" of two rounds; sometimes the gun fires as you let the trigger out. This is called doubling (or hammer/striker follow), and on a Glock it almost always traces back to the fire-control geometry — most often a connector with the wrong angle or a trigger bar that isn't resetting. It is a malfu …
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