They work
I needed something that held more than 10 rounds for competition (I compete but not a grand master or anything). So far, they have worked. Sometimes, the rounds will jam going in if you try to load to fast but going slow works. With OEM, I need to make sure the bullets’s nose points up each time to get good feeding but I haven’t needed to with these.
Just break it in.
Yes brand new out of the bag you should only load about 15 like the one reviewer stated, after really a few hundred rounds or less it'll break in and then start loading it with 18, I have about 5 of these promags 18 rounders and its flawless and will cycle any kind of bullet, I'm am by no means a Glock fan boy, I actually prefer Rugers, but this block 44 has become my favorite gun with the promags, and I would carry this combo for personal protection if needed to. I wish glocks came with a manual safety, I just love that added safety protection, that's just me. If you're an older person who wants less recoil or just love the 22lr like I do you will love this combo.
I love these mags!
I hear a lot of complaints of not being reliable with 18 rounds, but I load mine to 15 like the same capacity as a G19. At 15 rounds I rarely have issues and I am quite happy with these mags. Not sure why Glock only did 10 rounds with these mags, but these are a great option to use your G-44 to simulate a G-19. Give at least one a try!
Pro Mag Glock 44
I was looking around YouTube about various Glock related items and there was a gentleman that had listed a video about the reliability of the pro mag magazine for the Glock 44. One of the things that he did was shorten the coil spring about three or four links and re-inserted it into the magazine which made it have a less compression and also to be able to load the 18 rounds of 22 Long rifle that it advertises. I did this and I think it improved the feed it also got the spring to compress without getting all twisted up within the magazine.. I know you shouldnt have to buy a product and then immediately turn around and modify it to be functional but thats just the reality of this magazine and I agree that they should not have a wound or coil spring it should be a rectangle spring like the Glock uses.
Pretty Good
I have 4 and they all take some time to break in and get used to but after they have been used a few times they are good to go.
Just don't try to load them all the way up
I wanted a couple of extra magazines for my Glock 44 so when I was at GSSF indoor matches, I wouldn't have to spend as much time loading magazines while on the line. These are hard to load, they kill my fingers. I have not been able to get 18 rounds in but I did manage to get 15 in today and they had failure to feed really bad, even denting the casings on two rounds. They work a lot better with just ten rounds and I didn't have any more malfunctions then than I did with the Glock mags. So in a match, I would probably use these for the five round strings and use the Glock mags for the ten round strings. If you want a high capacity mag, I don't think these will do it for you but I think they are adequate for my purposes.
Could be better
Been looking every where for the high count mags finally got. Not very smooth loading or feeding but works with minimal malfunction
Stick with Glock Mags
I decided to try these magazines with my Glock 44. the gun came with 2 factory mags, and I ordered 4 of these. It was the price that I found attractive. In comparison, the springs on these are plain coil springs that do not occupy the entire inside of the magazine, and have heavier spring tension. Whereas the Glock springs more rectangular. The Promag springs were so heavy that loading just the equivalent 10 rounds was approximately twice as difficult, or twice the spring tension. A major drawback was the thumb tabs. they are small and flush with the body, and very difficult to keep pressed down. The Glock tabs are much larger and have good serration for grip. By appearance at the feed lips they should feed the same, however, the Federal ammo I was using would not feed well, and there was enough drag to cause stove piped empties. I did not get this with the Glock mags using the same ammo. The Glock mags are single stack where the Promags are double, due to the 18 rnd capacity. This resulted in the cartridges' binding in the magazines. Had they stuck to a single stack, this may have been avoided. Over all, I would recommend that Glock 44 owners stick with factory magazines. I have Promags for other guns and they work just fine. Just not for this gun.
Needs to be redesigned
The return spring is round and just "flops" around under the follower. The spring should be rectangular. The load assist tabs are too small also. I attempted to use these several times, and they will not function in our Glock 44.
Poor reliability and Kaboom!
One Star poor quality Inconsistent would be an under statement, one mag would work fine a few times then begin to jam, other would never work correctly, then I get a jam that gives me a slam fire while the action is still open, case ruptured and sent brass and powder everywhere. Never again. Sending them back.