Most realiable 2011 mags

[Moloch38]

MBX ran best out the box in my STI DVC. My Atlas has Gen2 STI tuned by Atlas and they run flawless. If you are shooting a PT Evo grop, I'd go with the Atlas tuned mags. 

[LMS]

8 hours ago, schaet said:

My next project is to compare every dimension, profile, angle and whatever else I can,. I really need to know the why?! lol .. this may be the end of what little sanity I have. 

 

 

A small price to pay given you'd be a legend and a hero on BEnos!

[Michigan3gunner]

13 hours ago, Scrmblr said:

Are they ok now? It was mainly the follower than caused me to curse. Once that changed, they were good, and I figured I might as well change the rest.


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Nope still suck haha

[Rieckman]

Both of my MBX mags run 100% and all 4 STI mags run 100% in my STI. All are stock  mags.

[cs62]

On 9/23/2018 at 11:46 AM, IHAVEGAS said:

 

My experience. Dawson's mag tuning kit with DVD worked great on 9's & 40, re-checked dimensions once a year after the seasons abuse or if I had reason to suspect one had been stomped on.  

 

+1 on the Dawson mag tuning kit with both STI Gen 1 & 2's as well as SVI mags all with Grams guts and all in .40.  The key is tuning them and then keeping them tuned.

Edited September 26, 2018 by cs62

[FunkyTownAggie]

As another database point, my My MBX and SVI mags have all run 100% in my SVI, STI and CK Arms 2011s. 

[JRM83]

MBX here. I had some issues with the stock springs/followers though. I changed my Gen 1 MBX mags to Grams guts and Gen 2 MBX to TTI guts and they run great.

[rritchie82]

I’ve had a great experience with the old STI mags. I load them down one and try to avoid dumping one that is over 1/4 full.

Edited September 29, 2018 by rritchie82

[Sdlrodeo]

I have 6 SVI mags. I don’t know if they are new or old but since they came with my Titan I’d guess new. I also have 4 Gen1 STI mags and one Gen2 that I run in my EDGE. I think the SVI mags stay in tune longer. 

 

But what I get from reading this thread is:

Go with what you can afford.

Keep them clean.

Check the dimensions now and then.

Respring often.

[GringoBandito]

The only problem I have had with my STI mags was due to the bullet impacting the bottom of the ejector casing the bullets to nosedive and jam the gun. Once I had the right clearance, everything ran 100%. 

[dthomas1003]

I have 4 gen 2 STI .40 mags with TTI base pads and grams guts. After following the Atlas Gunworks tuning videos, including the one adjusting the mag body width, they have been 100% reliable. 

[mike4045]

Same STI and SV mags for last 7 seasons. Like anything they have had to be tweaked over that time. The original set from Brazos have had zero issues.

 

[promtcy]

SPS with stock guts and TTI base pads. They've run 100% in both my Para Pro Customs. They are essentially SVI mags. If you compare them they look identical. I had issues with STI in my guns. 

 

[Mustang684]

I picked up a couple MBX 140’s for my 2011. Factory stock they have run 100% so   nothing bad to say about them.

[doc88]

I have 7 SV mags with Grams guts 40S&W. All are 100% and hold 20 reloadable. Granted have only used them in SV guns though. Budd of mine used MBX and loved them.

[Jfitz427]

On 9/22/2018 at 10:46 AM, LMS said:

It took too long to get them tuned, but STI are finally feeding right in my new CK after lots of feed lip futzing and replacing the stock followers with Dawson.   

 

A friend who has a similar CK is still not there with his MBXs. I have been privvy to some of his communication with MBX, and it's been less than stellar.   During my early tuning grief with the STI mags I was second guessing whether I should have paid the extra dough (2x) to get the MBX mags, but now I'm glad I didn't.    Seems like for what they charge, it should be a better overall experience.  

 

On the other hand, other local shooters I know are doing fine with MBX in their STI guns. So, YMMV I guess.

I just got some sti gen 2 mags, and they’ve ran perfect out of the box. I was thinking about picking up 2 mbx mags to go with them, since they come ready to go. But I’m not so sure anymore. I think I might just get another 2 sti mags. 

 

Seems like 50% of people say they are the best, and run 100% right out of the box forever. And the other half has problems. 

 

Who stands behind there mags more, sti or Mbx?

Edited October 1, 2018 by Jfitz427

[AustinT]

If SV mags are an option, that's what I'd go with. Been shooting the same set since 2014 with Taran pads and guts, gets me 24 hard-reloadable and 23 easy-reloadable in 9mm 140mm.

[waktasz]

I've never had to tune any STI mags to make them work. All of my guns work properly. I'm of the opinion that it's more likely a problem with the gun than the mags if you have to spend time messing with the mags to get it to feed. 

I have always bought STI tubes, put in grams guts and used a Dawson or Taran basepad. Done. 

Edited October 2, 2018 by waktasz

[Ssanders224]

26 minutes ago, waktasz said:

I've never had to tune any STI mags to make them work. All of my guns work properly. I'm of the opinion that it's more likely a problem with the gun than the mags if you have to spend time messing with the mags to get it to feed. 

I have always bought STI tubes, put in grams cuts and used a Dawson or Taran basepad. Done. 

 

Pretty much this.  I used the same 5 STI mag tubes for 4 years and never touched them. Ran them in a few different guns. 

My current Limited guns will even run on my wife's 38SC mags.  Good gun and good ammo, and mag "tuning" isn't a huge deal.

 

That being said, I have a set of MBX mags that I'm using now, and they are perfect. I wasn't impressed with their first gen springs, but the mags are great now. Adrian made a believer out of me. 

[LMS]

7 hours ago, waktasz said:

I've never had to tune any STI mags to make them work. All of my guns work properly. I'm of the opinion that it's more likely a problem with the gun than the mags if you have to spend time messing with the mags to get it to feed.

 

I wish this was the case, but given the Dawson tuning kit and DVD exists, it's hard for me to agree.

Edited October 2, 2018 by LMS

[waktasz]

My Caspian mags definitely sent bullets straight into the feed ramp, but other than that, maybe I've just been lucky. The only times I've had a gun not work was because the guns were awful themselves. The mags worked just fine in other guns that were set up right. 

 

[OPENB]

On October 2, 2018 at 7:26 PM, waktasz said:

My Caspian mags definitely sent bullets straight into the feed ramp, but other than that, maybe I've just been lucky. The only times I've had a gun not work was because the guns were awful themselves. The mags worked just fine in other guns that were set up right. 

 

Me too. 8 different open & limited STI & SV, and never had to do anything but put Grams guts & Dawson base pads on tubes & go shoot. 

[TRPOperator]

I really like the STI Gen2 mags..have tried them all and so far they run the best in my guns.

[Bkreutz]

I had nothing but problems with the gen 1 STI mags, screwed around way too long trying to get them to work, replaced them all with MBX, have had ZERO problems. The gen 2 STI mags may be better, but I have no reason to even try them.

[schaet]

My 170's were Gen 2 and problem child.  Since then been running an MBX with no regret at all. Just bought a second one for a backup. 

 

I'll be doing some dimension comparison on both brands to see where the STI's are falling short. Like I mention in a previous post, there are some definite differences in the exterior profile. Ordered up some internal calipers and will be doing some investigating.