As in the 10mm 4th generation Glock 40, not a Glock in .40 caliber. Picked up one as an early birthday present yesterday. I am still definitely within the pink clouds of a new purchase, but figured I'd share my initial impressions anyways.
I am not one for the Glock aesthetic, but I have to say I think this is the prettiest of all the Glocks. Long slide gives it some really nice proportions. It's also a pretty hefty gun, which is a great thing to have in 10mm.
Easier to realize just how large this gun is in comparison to it's .40 S&W Cousin, the Glock 35. Much bigger grip, much thicker and longer slide. The grip is bigger than I'd like, but I certainly appreciate having 15 rounds of 10mm on tap.
In comparison to it's little brother, the 20SF I bought for concealed carry in the woods.
I pulled it out of the box and dumped two magazines downrange at 10 yards. It took me a couple of shots to get used to the trigger, but thereafter, I was able to shoot fairly fast and my group tightened up quite a bit. Most importantly, I enjoyed it. Muzzle returned very quickly to target. I ran a magazine of Sig Elite V Crown and another of PMC's 200gr FMJ TC without a hitch. I was mildly surprised at the muzzle flash from the PMC, but otherwise, no excessive movement of the gun or undue strain on my wrists. It ran very smooth. I followed up on subsequent targets with the anemic but cheap PPU 180gr JHP, which also ran just fine.
I shoot a lot of 10mm, but not a ton through my Glock 20. Enough to keep reasonably proficient, but I much prefer shooting my single stack 10mms for fun. The Glock 40 may change that a little. It still has the grip that is uncomfortably large in my girlish hands, and the same crap mushy trigger with too much uptake that is standard with all stock Glocks. However, the added slide length and weight made it a joy to shoot, and fairly fast, too. Once I have a few more rounds on the trigger, I may see how it does at the bowling pin matches I have grown so fond of.
Thanks!
JohnnyEgo