This is the factory Glock 17 17-round magazine in 9mm. This magazine also fits Glock 34 45 and 47 pistols. This factory magazine is the most reliable option for your Glock 17 pistol. Featuring a polymer construction with full-length steel inserts these Glock magazines are designed to perform in even the most extreme conditions. In addition it has an anti-tilt follower impact-resistant polymer base pad and convenient witness holes. With Glock factory magazines the factory spring can be a little stiff out of the box. Loading and unloading a few times will help ease loosen the spring and become much more thumb-friendly. Check out our selection of magazine loaders to help with the loading process. This G17 magazine fits most Glock 9mm pistols: 17 17L 19 26 34 and 45. Although this is a Gen 4 magazine it is compatible with Gen 1-5 pistols. Standard factory Glock Magazines made of high resistance light weight polymer. This is a factory original drop-free magazine for your factory Glock. Factory Glock magazines have a hardened steel insert encased in high tech polymer. This polymer coating protects the magazine and prevents deformation even when dropped from a great height. NOTE: GLOCK MAGAZINES CAN BE VERY DIFFICULT TO LOAD WHEN NEW. OFTEN THE LAST ROUND WILL NOT FIT UNTIL THE MAGAZINE HAS UNDERGONE A BREAK-IN PERIOD. IT IS RECOMMENDED THAT THE MAGAZINE BE LOADED WITH ALL BUT THE LAST ROUND AND LEFT FOR A FEW DAYS TO COMPRESS THE SPRING. CYCLING THE MAGAZINE FROM FULL TO EMPTY MULTIPLE TIMES CAN ASSIST IN THE BREAK-IN PERIOD. Manufacturer: Glock Inc. Part Number: MF17017 UPC: 764503170171 Weight: 0.22 lbs

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