Just had the chance to try one of these out the other night. At first glance you can't tell a difference other than the KCI on the bottom where it would say Glock. Put about 100 rounds through it and not one issue. Not that I'm an expert, but IMO they did a good job making these mags. Went and ordered a 10 pack for $100, splitting it with another buddy of mine. These are for the Glock 19...

http://www.militarygunsupply.com/shop2/index.php?main_page=product_info&cPath=4_6&products_id=640

Personally for the price I will stick with Glock mags. You may not notice a difference now but they don't have the decades of testing that OEM Glock mags do and I don't want to find out two years from now when I need to use my Glock to save someone's life that the KCI mag I have failed. It's not worth saving $3-$4 IMO.

Personally for the price I will stick with Glock mags. You may not notice a difference now but they don't have the decades of testing that OEM Glock mags do and I don't want to find out two years from now when I need to use my Glock to save someone's life that the KCI mag I have failed. It's not worth saving $3-$4 IMO.
What Glock OEM mags are you finding for $13-14? I still have a few OEM mags, but for plinkin and $10 a mag its a no brainer IMO. Leary myself, I went and picked one up just to see how they were, it worked fine. Great alternative to have some fun.

If you're just using them at the range and not for competition or self defense you'll be just fine.