TTI base pad spontaneous disassembly

[DocSabo40]

Hit the range today with my G17 to practice some reloads. Dropped the first mag, seated the second, made my hits, and then looked down and was greeted with this:
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I put the pieces away, got another mag, and ran another reloading drill. Got this:
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By the end of the session I had one functioning mag (the factory one) and 3 deadlined TTI base pad mags.
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The 17 mags are fairly new, the base pads are in perfect shape, and everything was tight. I know others use these without issue, so what am I doing wrong? Can these just not take being dropped on a concrete floor?

[El Cid]

Weird. I've dropped mine (have several) on concrete and gravel without issue. I'm very interested in hearing what you discover. Did you call TTI? Are there any obvious differences between the mag bottoms and other G17 mags that you own?

[DocSabo40]

I'm going to call TTI tomorrow and ask them about it. I really want these to work, as I find the extensions to be more comfortable to carry than the stock mags (and they hold more BBs).

As far as the mag bottoms: the bottom magazine has the body a bit buggered up by yours truly, but the floorplate still snaps on with authority. It works fine with the stock base pad. The top two are almost new, just a few range trips on them.

[DocSabo40]

Here's a quick video of it. Skip to the end to see it disassemble itself.

https://www.youtube.com/watch?v=DGiqctWK3-U

[mark7]

Can't resist: has that mag been near a G17M recently? :D

[DocSabo40]

You can't see it in the video but my slide stayed on.

[martin_j001]

Interesting. I ran several of those with +10% Wolff mag springs for a while, even dropping them on gravel at matches and never had a problem. I now just run the +5/6 versions on my competition mags, and haven't had issues with those either.

[Malamute]

Tamara wrote of a + base coming apart in the gun and ejecting the rounds out on the ground, I don't recall the make.

Don't recall if there was a determination of cause.

[CS Tactical]

Did you tighten down the hex screw so the pin is snug?

[DocSabo40]

Did you tighten down the hex screw so the pin is snug?

I did. You can see in the photos that the pin is still in place on all 3 mags. The base pads appear to be slipping off sideways. Check out the top mag in the bottom picture.

[DocSabo40]

I just got off the phone with Landon at TTI. He said that this "does happen from time to time". He said that the cause may be a mag extension slightly out of spec, or sometimes the mag extensions can wear a groove in the plastic of the magazine. He said to send them in, and he would replace the extensions, the magazines, or both. Great service.

[El Cid]

I just got off the phone with Landon at TTI. He said that this "does happen from time to time". He said that the cause may be a mag extension slightly out of spec, or sometimes the mag extensions can wear a groove in the plastic of the magazine. He said to send them in, and he would replace the extensions, the magazines, or both. Great service.

Always nice to hear stuff like that so I can keep sending them my money.

[LittleLebowski]

I just got off the phone with Landon at TTI. He said that this "does happen from time to time". He said that the cause may be a mag extension slightly out of spec, or sometimes the mag extensions can wear a groove in the plastic of the magazine. He said to send them in, and he would replace the extensions, the magazines, or both. Great service.

Did he contact you or the inverse?

[ranger]

Can't resist: has that mag been near a G17M recently? :D

Damn, beat me to it!

[DocSabo40]

Did he contact you or the inverse?

I called him. They have all 3 magazines and base pads now. I'll update the thread when I get them back and practice reloads in my garage again.

Oh, my apologies for the youtube link. I saw in another thread that that is frowned upon. I just thought that it would take up less space than uploading the video directly.

[SLG]

Great customer service, no doubt, but his honesty is proof of why these are inappropriate for carry.

[LittleLebowski]

Oh, my apologies for the youtube link. I saw in another thread that that is frowned upon.

That's news to me.

[fishing]

Great customer service, no doubt, but his honesty is proof of why these are inappropriate for carry.

Poor quality control and or design though!
I would hope too that they would have sent OP verified good replacements right after the issue was hashed out during his call in to them, instead of making him wait until the defective ones were returned.

[Clusterfrack]

Magpul Glock mags are similar in price to these extensions. Maybe switch to those? SLG--do you think the Magpuls are GTG? Mine have been 100% so far.

[matt7184]

I just got off the phone with Landon at TTI. He said that this "does happen from time to time". He said that the cause may be a mag extension slightly out of spec, or sometimes the mag extensions can wear a groove in the plastic of the magazine. He said to send them in, and he would replace the extensions, the magazines, or both. Great service.

This happened to 5x of my +0s. TTI took care of the issue.

[ragnar_d]

Great customer service, no doubt, but his honesty is proof of why these are inappropriate for carry.
Started to think the same thing. When I had the followers hang on the transition between the extension and the magazine body, I went back to carrying nothing but regular G17/G19 length mags. I might consider a GL9 21 for a reload, but that's later on.

[El Cid]

Started to think the same thing. When I had the followers hang on the transition between the extension and the magazine body, I went back to carrying nothing but regular G17/G19 length mags. I might consider a GL9 21 for a reload, but that's later on.

The 17rd magazine with the OEM +2 is a reliable option.

[SLG]

Magpul Glock mags are similar in price to these extensions. Maybe switch to those? SLG--do you think the Magpuls are GTG? Mine have been 100% so far.

I have two of the 21 rounders, and they have been fine so far. Too few to make any real decisions about. OEM is tough to beat for carry.

[breakingtime91]

The 17rd magazine with the OEM +2 is a reliable option.

Do you have to change the mag spring for those?

[ragnar_d]

Do you have to change the mag spring for those?

Not el cid, but in the ines I used previously I ran a Wolff +10% spring. I've got a few extra so I may go back to those.


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[El Cid]

Do you have to change the mag spring for those?

According to Glock you are supposed to use the 11 coil spring. Part number 2551. It's the same spring used in the G22.

[DocSabo40]

Update: I got 3 brand new Glock mags with new +4 TTI extensions in the mail from Landon today. That's the good news. The bad news is
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That happened during the second reload. The next mag fell apart on the first impact, the third one took 4 hits before coming apart. I'm not impressed.

[SLG]

Plenty of high speed dudes use these, and now that Wick 2 is prominently featuring them, I'm sure all the hollywood types will have them as well.

None of that makes them appropriate for anything serious.

[littlejerry]

Gotta say I'm surprised, and troubled, that you've had so many issues. I've been using a Taran +4 for the past year as my starting mag in USPSA and GADPA. It's been dropped dozens of times, mostly on dirt but often on concrete. I haven't had any issues but perhaps I have a golden combo where my mag body is oversized just slightly.

[hiro]

Update: I got 3 brand new Glock mags with new +4 TTI extensions in the mail from Landon today. That's the good news. The bad news is
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That happened during the second reload. The next mag fell apart on the first impact, the third one took 4 hits before coming apart. I'm not impressed.

Will you continue to use them?

[karmapolice]

Well that's super frustrating. I would say switch to some magpul 21 rounds and verify their function obviously but 16-20 bucks for those. I've heard good thing about the Dawson tool less mag extensions but you could get two 21 magpuls for the price of one extension.

[SLG]

Why the obsession over a few more bullets? We all like high capacity, but this is not the right direction to spend time and energy. I would venture to say that the graveyards are not full of guys who only had 17 rounds in their spare mag...

For games, do what you need to do to be competitive (or happy), but for carry? No thanks.

I hate to sound all negative and keep beating this dead horse, but I keep seeing people who claim to be defensive oriented, and they run off the tracks on stuff like this. Everyone has a line they are happy to stay behind, and that can legitimately be different from person to person, but anything from a G26 to a G17 is well within tolerances. I truly don't understand the thought process that drives some people. More bullets but maybe (or even demonstrably) less reliability/ruggedness? Not a smart trade.

It's not just TTI, and I don't mean to pick on them. I've used them on the range with complete satisfaction. But that's where I leave them.

[littlejerry]

Why the obsession over a few more bullets? We all like high capacity, but this is not the right direction to spend time and energy. I would venture to say that the graveyards are not full of guys who only had 17 rounds in their spare mag...

For games, do what you need to do to be competitive (or happy), but for carry? No thanks.

I hate to sound all negative and keep beating this dead horse, but I keep seeing people who claim to be defensive oriented, and they run off the tracks on stuff like this. Everyone has a line they are happy to stay behind, and that can legitimately be different from person to person, but anything from a G26 to a G17 is well within tolerances. I truly don't understand the thought process that drives some people. More bullets but maybe (or even demonstrably) less reliability/ruggedness? Not a smart trade.

It's not just TTI, and I don't mean to pick on them. I've used them on the range with complete satisfaction. But that's where I leave them.

I don't disagree with you at all, but competitive shooters still want to use robust and reliable equipment. By nature my gun game of choice requires constant dropping of partially loaded mags. Having one bust apart mid match would suck. I just watched an ETS mag explode when dropped yesterday on dirt. Not exactly suitable for gun games... Best used for Instagram posing.

[SLG]

I don't disagree with you at all, but competitive shooters still want to use robust and reliable equipment. By nature my gun game of choice requires constant dropping of partially loaded mags. Having one bust apart mid match would suck. I just watched an ETS mag explode when dropped yesterday on dirt. Not exactly suitable for gun games... Best used for Instagram posing.

Totally agree with you. Lots of high horsepower shooters have lost matches (that I've been present for) because of unreliable equipment (and sometimes techniques). It's why I shoot production, with my actual carry gear, when I shoot matches. I don't want to lose because my 1 or 2# lighter trigger failed me. My only point was that if you have found something like TTI pads to work for your competition needs, then maybe they are good enough for that.

[karmapolice]

SLG once again I find myself saying I agree with you and it might have not been directed at me.

My post was more of the use if that's what someone is looking for and along competition line or whatever. I verify competition/practice stuff as well and for duty I carried standard 17 mags with my 34. I won't lie and say I haven't run some mags with the TTI base plates but that was after using/vetting them and not having issues.

I did this as I wasn't running a triple mag pouch anymore and wanted the same amount of rounds but with two spares instead of three. This is something I struggled with and have previously decided to stop doing because of issues like this even though I ran mine and dropped the crap out of them with no issues. They will be used for range/competition use only but more than likely they probably will just be sold.

I think it's part of just that never ending quest and sometimes people get caught up in it in the wrong way maybe knowingly or not. I'm definitely a proponent of running proven stuff and not doing stupid modifications. My Glocks have stock trigger components, after market sights, the gadget, and that's about it now that I'm back to running the 34. I will buy magpul mags for competition as I can get them cheap and if they get trashed so what. I run stock magazines in my pistol for carry/work and other than a lapse of having some TTI base pads on my reload mags for about a month that's it.

My plan is to shoot more competition and will utilize the gear I actually run at work. With that I run AIWB off duty and at work part time otherwise it's strong side OWB with tucked in shirts, which the AIWB puts me in limited USPSA and or maybe being able to run it in indoor GADPA matches which is like IDPA. (Closest indoor matches to me are IDPA/GADPA stuff)

[Kyle Reese]

I have not had good success with mine and will be selling off my entire fleet of TTI base pads w/ springs. Great concept, but I much prefer the OEM Glock 17 mag or 21 round Magpul GL9 for carry duty.

[DocSabo40]

Will you continue to use them?

Nope! They are in a box now, shortly to be put up on eBay.

SLG, I totally get what you are saying. My main motivation for these was that I found the soft edges of the TTI basepads to conceal better for my spare mag, despite the longer length. I find that the stock basepads can kind of "grab" my shirt if I twist just wrong. In other words, if they were +0 (and didn't fly apart) I would carry them for the concealablity, not the capacity.

[SLG]

Nope! They are in a box now, shortly to be put up on eBay.

SLG, I totally get what you are saying. My main motivation for these was that I found the soft edges of the TTI basepads to conceal better for my spare mag, despite the longer length. I find that the stock basepads can kind of "grab" my shirt if I twist just wrong. In other words, if they were +0 (and didn't fly apart) I would carry them for the concealablity, not the capacity.

I totally get that, and was not really directing any of my comments at you in particular. I think many people are in that category.

I say I get that, becasue I have been playing with a Magpul 21 rounder as a spare for a while now. When I carried a G22, I carried a Glock oem 22 rd mag as a spare becasue it allowed my aiwb mag pouch to work better. Sat deeper, which was more stable, but still presented enough above the belt for a good draw.

As we each play with new or different carry gear, we will need to find new or different solutions. I am back to a Glock 17 spare mag, because I adjusted how I use the mag pouch. It also allows my CP to ride well, which it wasn't doing with the magpul mag. CP is MUCH > than a few extra bullets. :-)

Experimenting is essential, even with sub-optimal gear. Nonetheless, the purpose of the gear must be kept in the forefront, and very often that doesn't seem to be the case.