Glock mags are notorious for not wanting to take that last round when new. Load 'em up as full as you can get them. Use the mag loader that came with the pistol or an HKS mag loader, if you have one. Let it sit, loaded, for a day or two. Then it will be tolerable to load in the future.The Annoyed Man wrote:Hey, for you Glock afficionados out there, what's with the 15 round magazines that only hold 14 rounds? Wifey's gun came with three 15 round magazines. One of them holds 15 rounds. The other two only hold 14, no matter how much you try. Also, what does it take (besides dynamite) to remove a magazine floor plate so that you can inspect the inside for binding issues? My Kimber magazines hold all 7 rounds they're supposed to hold, no problems, no fuss.
The mag baseplate requires a tool to remove. Glock sells a tool for this purpose (and to detail strip the pistol) for around $7. I bought a 5/32 punch from the local hardware store for about $3. Start with an empty mag (duh). You will need to insert this tool through the baseplate in the hole in the middle of it. This will push a sub-plate out of the hole and compress the spring. Shift the tool toward the front of the mag, so the tool will slip in front of the spring. Lever the baseplate off of the front of the mag body. Some people find that compressing the sides of the mag body helps getting the baseplate off, but I don't think it makes a bit of difference, personally. Once you get the baseplate started in sliding off, remove the tool, and prepare to catch the spring and sub-plate before they launch out of the bottom of the mag body. Re-assembly is intuitive.