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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Glock's sixth generation is here. GLOCK announced Gen 6 in December 2025 and the pistols hit retail in January 2026, launching at SHOT Show in the G17, G19, and G45 — all 9mm. If you've built or bought parts for earlier Glocks, the first question is the practical one: does any of my Gen 3, 4, or 5 gear work on a Gen 6? The short answer — magazines, holsters, and ir …
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