If you're looking to buy a quality Glock Holster, the top three brands your looking at are going to be Galco Holsters, Blackhawk SERPA Holsters, and Blackhawk CQC Pistol Holsters. What you want to look for in a Glock Holster is firstly to make sure your Glock fits in the Glock Holster correctly. You want the Glock Holster to hold the gun in place but not squeeze it so hard that you can't actually get the gun out. The second attribute you want to look for in your Glock Holster is that it can cover the trigger and guard but that it's also tight enough to where it can stay open for "one-handed" holstering and re-holstering. It really doesn't matter if you use your gun from your Glock Holster every day or if you just shoot off a couple of rounds at the shooting range; your Glock Holster can make a world of difference regarding comfort and functionality if it's a good "fit" for you!
Want to know more about holsters? Check out our Holster Buyers Guide or our How To Choose A Holster page.