Xtech Tactical Magazine Features The Xtech Tactical Magazine is built around a steel-reinforced body that resists the flexing and cracking that can affect polymer-only magazines under repeated use extending service life for range and duty use alike. Its 17-7 stainless steel spring is engineered for consistent tension over thousands of cycles avoiding the weakening that shortens the life of lesser springs. The Delrin follower includes a No Stick additive that reduces friction against the magazine body promoting smoother more reliable feeding shot after shot. Together these components deliver an upgrade over the factory Glock magazine spring and follower setup. Compatible with Glock 19 Gen 3 Gen 4 and Gen 5FS pistols that lack the front scallop cut this magazine is not intended for Gen 5 models with the scallop or half-moon cut front. The proprietary baseplate material is chosen specifically for durability standing up to repeated drops and hard use without cracking. At 17 rounds it offers a useful capacity bump over the standard Glock 19 magazine for shooters who want more rounds on hand. This is an aftermarket product and is not manufactured authorized or warranted by Glock. XTech Tactical MOD C Specifications Brand: Xtech Tactical Model: MOD C Magazine Compatible Hosts: Glock 19 Gen 3/4/5FS Caliber: 9mm Capacity: 17 Rounds Material: Steel Reinforced Polymer Spring: 17-7 Stainless Steel Follower: Delrin No Stick Available At: GrabAGun