9mm mags
Bought 6 for 2 guns a Girson 9mm and a Colt lw comm. 38 super with a 9mm barrel.
Some will not lock back the slide after the last round (also replaced the slide lock on the Girsan, helped some) on both guns.
Some will not drop free, The Colt is the worst.
Sometimes the top round will nosedive (worse with heavier bullets)
My 20-year-old 9 rounders still work good though, but the springs are getting pretty weak.
9mm mags
Bought 6, 2 will not drop free from Girsan 9mm and at luast 1 ammo will nosedive when feeding.
Verry hard to get the 10th round in most of them,
Doesn't lock back
In my SA Ronin 4.25" the mags cycled fine but would consistently not lock back on the last round. Strangely enough, each mag (i got the 3 pack) did lock back the first time they were shot. After that 9/10 times they would not lock back. Curiously, after the round was fired and the slide failed to lock back, i also couldn't simply lock it back by just racking the slide. Its like the slide would almost lock back and then "slip". Tried different ammo. Same exact problem. Tried mec gar 9rd mag, ed brown 9 rd mag and the oem mag that came with the gun, they all locked back. I don't have another 1911 to test it with but I'm guessing my gun just doesn't like these mags. Too bad, they were a great price for 10 rounders. Of course YMMV
Good - Except one thing
I ordered 3. The magazines are great except the magazine follower is lousy. Cartridges nose dive leading to failure to feed. Of course that makes the entire mag non-usable as a self defense mag where a person's life might depend on the cartridge actually making it from the mag to the chamber.
Nice but.....
Solid mag and appears to be well made. I bought 6 mags and none of them would feed into the mag well of my STI Trojan w/o binding about 3/4 the way up. Needless to say the do not drop free. I noticed some do not bind as much as others so I put a micrometer to them and found a lot of variation. I mic my mags that do work and they are smaller and more consistent. Just as an aside they did load in my Remington R1 (it is a .45ACP THOUGH). I wanted them to work but will be sending them back.
Cheaper for a reasom
The price is the only good point. If shooting as a hobby, they will fine. I ordered 4 for duty use. All 4 fail to lock back after the last round, and all 4 will not drop freely. I won't even train with these due to the problems.
Not very good
I purchased four of these mags and they would not drop free from my Ruger SR1911 Lightweight Commander 9mm. Ended up taking some sand paper to them to sand off some of the finish and high spots. some were worse than others. They all finally seem to be working ok now.
Has potential, but...
I have had been mostly pleased with the Brownell's .45 magazines (but still like Wilson ETMs better), so I decided to try one of these: On the 'plus' side, the rounds load into the mag easily, I can easily lock a fully loaded mag into my gun (Dan Wesson PM-9) with the slide closed, the mag drops free, and activates the slide lock when empty. I have not tested it with live rounds yet, but feeds dummy rounds perfect. But, on the very negative side is the problems I have with the "removable base". I found the one on mine to be very close to non-removable. With the center piece depressed, I could not even budge the plate off by hand. The only way I got it off was by using a vise, large punch, and a rubber mallet (and some blood from skinned knuckles and a fair amount of 'colorful language'). Once I had it off, I could see the ridges inside the base that are supposed to fit into the slots at the bottom of the magazine were not close to lining up. This is not something easily fixed by trimming due to the construction of the base. Since the ridges do not fit into the slots, I also wonder if the base will fly down off the bottom under the spring pressure of a loaded magazine . While I don't know if all the magazines have the poor fit of mine (none of the Brownell's .45 magazines I have are like this), the only way I could recommend this magazine is if you are one that never takes magazines apart for cleaning (I take mine apart before the first use to remove the excess wet oil often found inside).
