Lesser of two evils

[Echo40]

My only experience with either is through my brother, who bought one of Promag's extended round magazines for a Taurus TCP-738. The magazine was absolutely useless out of the packaging, utterly incapable of loading a single round into the chamber without hanging up on the feedramp.
However, he was able to find a video on YouTube which illustrated a method of making the magazine reliable by modifying the feed lips with a pair of pliers which worked for him, but he never carried said magazine and used it strictly for range use because he didn't feel that it was reliable.

So if you absolutely must choose between the two, then go with Promag because at least they aren't known to fall apart and can generally be made to work reliably.

 

[FUBAR-M1A]

I bought 1 of the 10rd Pro-mag 4506 mags to try & it worked fine. I haven’t shot it a lot, & wouldn’t rely on it for serious work, but it worked fine for the range. That would be my choice between the 2.

 

[HOUSTON RICK]

Unless you like jam clearing drills, put the money toward the 4506 factory magazines while they are still out there. They are about $50 here. It's all relative - you could be looking for 10mm factory mags. You will never really have confidence in the aftermarket knock offs.

 

[gwpercle]

I have owned a few Triple K magazines .
Two for a Star Model PS in 45 acp . Two for a Walther PPK 32 acp , Two for a Walther P-38 9mm Luger .
All were range and target pistols ...none were self defense stake my life on them .
All worked and worked rather well . A few sharp edges were smoothed, inside and out and all were kept lubricated .
Maybe not MecGar quality , fit and finish but serviceable .
The metal bodies are not of super thick metal and the followers are not the latest design . I never had one fail , for the price I paid I got my money's worth and if the only option is a Triple K or NO magazine I'm buying the Triple K . Look them over and smooth any sharp/rough edges, make sure all crimps are fully crimped , lube , reassemble and go shooting .
Gary

 

[xfarfuldog]

A couple of years ago, I purchased a 4506. It came with 2 S&W mags and a 10 round Pro Mag. All three worked fine but I did not depend on the Pro Mag. I ended up selling the 4506. A few months later I bought a 4566. It came with one mag. I looked for a long time for more mags.

Then I found a 4506 locally that came with some extra springs and 12 magazines. All were Smith except one Pro Mag 10 rounder. I cleaned all of the mags and fired all of them all in both guns. No problems with any mags. I sold the 4506 - too big for me.

In my experience Pro Mags work fine. But I would not bet my life on them.

If I ever sell the 4566 I will advertise the extra mags here.

 

[Green Frog]

I inherited my 39-2 with 3 magazines included. My 639 came with only one mag, but I was a able to buy an additional factory SS mag a short time later at a price that was only mildly larcenous. If I need to carry a lot of extra ammo for one of the guns, that makes 5 available. If I think I'm going to need more than that, I'll stay home and wait for friends to show up with their guns and lots of mags full of ammo!

Froggie

 

[Racer X]

39/x39 can use 39xx full sized mags, so I understand MecGar not finding it worthwhile.

 

[Tom 1951]

It's a different kettle of fish, but I bought 2 Triple-K magazines for my .22 Beretta 71 and they work as well as the factory mag that came with the gun.

 

[BC38]

The only TripleK mags I have bought were a couple for my Stoeger 22 "Luger" and a couple for my Erma 22 "Luger".
The Stoeger mags work fine.
One of the Erma mags is really tight to insert and remove but the other one works just fine.
I don't know that I've ever owned any Promags, so I really can't comment on them, other than what I've read here and elsewhere - which is that they are of very poor quality.