Extended your time at the range with this Glock 31 factory magazine. Each magazine will hold 15 rounds and sit flush with the grip. It can also be used with other .357 Sig models like the 32 or 33, but will extend past the grip. Made out of a hardened steel insert encased in tough, durable polymer, this magazine won't deform or twist under pressure and can survive drops. The dual cutouts allow you to use this in Gen 4 or 5 models and orient the magazine release on either side. The high tensile strength spring and polymer follower help prevent jams and malfunctions. With just a quick glance, you can easily check how many rounds are left in the mag thanks to the numbered round count witness holes on the back of the mag body. Why bother with worrying about fit and function of your next magazine when you can have stock, OEM Glock perfection?

Features and Specifications:
Manufacturer Number: MF31015
Caliber: .357 Sig
Capacity: 15 Rounds
Durable Polymer Construction
Steel Inserts
Metal Magazine Spring
Witness Holes
Black