Glock 21 10-Round Magazine

Factory G21 Magazine

This is a genuine Glock magazine for the Glock 21, the company's full-size pistol in .45 Auto (also called .45 ACP). It holds 10 rounds, which makes it the version to look at if you shoot where magazine capacity is capped at ten, or if you simply want spares from the same maker as the pistol. It arrives sealed on Glock's own blister card, part number MF10021.

Features

• Genuine Glock OEM — OEM means original equipment manufacturer, so this is the same factory part Glock supplies, not an aftermarket copy.
• 10-Round Capacity — Holds ten cartridges, matching the limit some states and localities set on magazine size.
• .45 Auto Caliber — Sized for the .45 Auto cartridge the Glock 21 is chambered in.
• Steel-Lined Polymer Body — A metal lining runs inside the black polymer shell, visible at the top where it forms the feed lips that hold the top round in place.
• Magazine Catch Notch — A molded cutout on the body is where the pistol's magazine release locks the magazine into the grip.
• Removable Floorplate — The flared base plate at the bottom gives you something to grip for a stripped magazine and comes off for cleaning.
• Black Finish — Plain matte black that matches the standard Glock frame.
• Factory Sealed Packaging — Supplied on the original Glock card with the MF10021 part number and UPC 764503100215 printed on it.

Build and Fit

Glock builds its magazines the same way it builds its pistols: a polymer outer shell over a steel core, which keeps weight down and lets the body flex slightly without cracking. The packaging is labeled specifically for the G21 in .45 Auto, so that is the pistol to match it to. Check your local laws on magazine capacity before you buy, since they vary by location.