This is a factory 9-round extended magazine for Gen 4 Glock 33 pistols in .357 Sig
While Glock’s pistols do an amazing job of taming the .357 Sig’s violent recoil, it’s Glock’s factory magazine that ensure optimum feeding & reliability despite constant torture and even in the most extreme conditions …
The subcompact Glock 33 delivers concealment-ready magnum firepower with the same rugged magazines that made Glock famous. Crafted from crack-proof polymer with full-length steel inserts and numbered witness holes, each magazine is designed to fit flush and function flawlessly in your .357 Sig Glock 33 pistol.
Fits Gen 3, 4 and 5 Glock 33 pistols ONLY.
Glock factory magazines can take a few shooting sessions before “breaking in” an becoming easier to load/unload. We recommend upgrading your magazine loader if you haven’t already. Glock magazines come with a very strong spring rate from the factory to ensure reliability in the toughest of conditions. Sometimes, magazines are found to be a little bit difficult to load at first. However, after a few times loading and unloading, the springs break in nicely and it becomes much easier to load.
We recommend using a magazine loader to ease the loading process.
For added strength and durability factory Glock magazines are steel lined on the interior with a crack resistant polymer body. This increased durability gives officers, military members, and dedicated citizens the confidence that there will be no issues under heavy training.
Grab a few spare magazines for your concealed carry kit today—and don’t forget to rotate your loaded magazines every 1-3 months to maximize service life.