I own 5 glocks. I have been shooting Glocks for a long time. My duty weapon is a Glock 31. I have never experienced any kind of failure in any of my Glocks. I prefer my Glock 21 SF over all of my Glock due to the fact that it is .45acp. I have medium sized hands, and the 21SF fits them well. The trigger is a little rough out of the box, but with a 3.5LB connector , an ultimate trigger stop (lone wolf dist.), and some polishing it is much better. I added an arredondo +4 mag extension to 3 of my magazines to give me 17+1 capacity. The extensions do make it a little more difficult to conceal, but with a light over shirt, it is no problem . My Glock 21 SF will shoot anything u feed it and it is combat accurate in my hands. The Glock 21 SF is very controllable during rapid fire strings and I have not experience any problems while shooting hammers or controlled pairs while training. I give the Glock 21 SF a 4 out of 5 due to the lack of factory cosmetics( forward cocking serrations, interchangeable back straps etc.). After training one day with my 21SF in a drop leg, I noticed that my 21SF had dirt all over it , including the insides. My partner had a HK Tactical that was also covered it dirt. When we went to shoot them, his HK malfunctioned several times due to the dirt build up inside and near the hammer.......MY glock kept to churning rounds. All in all, I would recommend a glock to anyone that wanted or needed a good reliable pistol.

Just purchased a new 21SF to add to my Glock collection on Sunday. I few things I noticed: the slide was very difficult to release for inspection, the magazine release is now ambidextrous but tends to stick in the release position when pressed in either direction, very difficult to release full magazine. A co-worker also purchased the 21SF from another store and he is experiencing the exact same symptoms. Took it to the range hoping a few rounds might loosen things up but it is still the same. Will contact Glock today and see what they can do. Aside from this, I am very happy with this new mmodel.

As with each of my Glocks - I am 100 satisfied, and love to shoot this newest Glock in my collection. I have not had one single problem, mag release, slide lock, mis-feed, ejections, nothing.. As usual, this Pistol has performed perfectly. I ran a marathon fire test, 50 rounds at 25 yards, under 2 minutes - Everything inside the rings, all but 5 rounds inside 7 ring... If your shooting for complete pin-point accuracy, look for a fully adjustable, compensated 1911, if your looking for a duty / combat pistol - this is one fine pistol. I enjoy the pure simplicity of Glocks, and the tried and true durability / dependability of their firearms... I simply enjoy shooting .45acp more than any other caliber - and the 21SF is great - No issues, including the trigger - it''s a combat / duty purpose built unit - so again, trigger is right for that application. Anyway that''s my 2 cents worth.