Fab Defense Magazine for Glock 17 Features The FAB Defense Ultimag magazine is engineered specifically to feed the Glock 17 pattern pistol in 9mm matching factory geometry so it drops free and seats positively in the magazine well. Its 10-round capacity keeps the magazine compact and reliable with a follower and spring tuned to maintain consistent feed angles from the first round to the last. The polymer body resists the swelling denting and corrosion that can plague worn steel magazines so it holds its reliability over years of storage and use. For shooters who want a dependable drop-in spare without the premium price of a factory magazine the Ultimag fills that role cleanly. Built from a tough black polymer the Ultimag is lightweight compared to steel-bodied magazines reducing the overall carry weight of a loaded Glock 17 without sacrificing durability. The polymer construction also resists the scuffs and scratches that accumulate from being stored loose in a range bag or vehicle kit. FAB Defense designed the Ultimag as a straightforward no-frills replacement or backup so there is nothing proprietary to learn before loading and running it. Anyone outfitting a Glock 17 for training competition or everyday carry will find the Ultimag a solid affordable addition to their magazine rotation. Fab Defense Magazine for Glock 17 Specifications Manufacturer: Fab Defense Model: Ultimag Compatible Hosts: Glock 17 Caliber: 9mm Capacity: 10 Rounds Color: Black Material: Polymer Available At: GrabAGun