Before taking this magazine to the range, I stoned the metal lips to remove burrs, and trimmed some minor flash from the mould seams to clean it up. I do this with any new magazines to reduce issues. Then I cycled several loads of snap caps through my Glock 42 to insure proper function. Yesterday, I took the magazine to the range and it ran flawlessly. I am very happy with this magazine. This magazine obviously makes the Glock 42 difficult, if not impossible to conceal carry, but it is nice to be able to run 10 rounds before reloading at the range. A side benefit is that when fully loaded this magazine give the pistol more heft and more grip area making it a bit more accurate by reducing muzzle rise due to recoil, at least for me. In my opinion this magazine is worth the price and I will likely buy more for range work. Good magazine at a great price. I recommend it.Read full review
Verified purchase: Yes | Condition: New
Ran the Promag magazine 3 times (30) rounds, had 2 malfunctions(stovepipe). If I can't trust it, then it's useless to me. Same ammo runs great through Glock magazines, in fact, I have never had ANY malfunctions using ANY ammo in Glock magazines. Don't know and don't want this magazine if it is ammo specific. If this magazine can not perform as well as Glock, then it should not be made.Would you trust it when a situation arises where it is actually needed?
Verified purchase: Yes | Condition: New
Fun mag to have at the range nice to have an extra 4 rounds when shooting and it is pretty sturdy, wouldnt use it for carry, only factory glock magazines. my only gripe is that the finish is so rough and it fits so tight it doesnt drop free even with rounds still in the mag but other than that it is a great addition to my range bag.
Verified purchase: Yes | Condition: New
Just received the mag in the mail. Promag has a checkered history of reliability so I won't know how well this mag works until I get out to the range. Otherwise, it seems to be well made. Guess I'll know in a week or two....or when the weather gets a little warmer.
Verified purchase: Yes | Condition: New
Fit my Glock 42 just fine and while I've only used it once so far, it performed as well as the factory mags. Had no feed issues, etc. It's also nice that it has the base plate and sleeve that makes up the empty space between the extended mag and the bottom of the grip.
Verified purchase: Yes | Condition: New
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