I'm looking at some Henning +6 mag extensions for the DWX. It'll never be a carry gun so why not make all mags 24+1 is my thinking.

I've always been hesitant to add +# extensions as I considered it a fairly risky failure point. These do however come with a spring kit for "increased reliability"

My question, what's your overall opinion of + extensions. at 48$ for each kit I truly expect it to function 100%.

Is it a crapshoot with reliability in your experience?

Depends.

Feeding/functioning reliability on factory and reputable aftermarket extensions tends to be just fine.

But I've seen a couple times, and heard of some more, where the extended baseplate attachment failed due to rough treatment, dumping all the rounds. Certain designs are more or less prone to this. So not necessarily something I'd trust for hard use with the mags exposed (like LE/Mil duty carry), but potentially still fine for a bedside table gun or possibly a concealed carry gun.

Since you say it's not going to be a carry/defensive gun, then I wouldn't be concerned about it. Worst case if it does happen to fail is you have to pick up some loose rounds at the range.

You asked for overall opinions and I can tell you that my Taylor Freelance mag extensions have been 100% in my M&P competition gun. I have several of the 140mm +6 extensions and a 170mm +10 and they have all been flawless in multiple matches, hot, dusty, dry, dropped on the ground. He includes Wolff springs in the kits and they work.

https://taylorfreelancestore.com/s-w/s-w-m-p/

quote:

Originally posted by RogueJSK:
Depends.

Feeding/functioning reliability on factory and reputable aftermarket extensions tends to be just fine.

But I've seen a couple times, and heard of some more, where the extended baseplate attachment failed due to rough treatment, dumping all the rounds. Certain designs are more or less prone to this. So not necessarily something I'd trust for hard use with the mags exposed (like LE/Mil duty carry), but potentially still fine for a bedside table gun or possibly a concealed carry gun.

Since you say it's not going to be a carry/defensive gun, then I wouldn't be concerned about it. Worst case if it does happen to fail is you have to pick up some loose rounds at the range.

I've seen this on the range as well. The Glock +2 plastic basepads I've seen fail, and some arrendondo plastic ones as well.

the Taylor Freelance, Taran Tactical, and it appears the Henning are machined aluminum with various methods for retention. I favor the screwed-on steel retention plate but some like the push-pin retainers. Just check the screws once in a while and maybe use some blue loc-tite... no issues for me.

I use Hennings as my preferred extensions. I’ve used CZ Custom and Taran Tactical as well. The CZ Customs have a floor plate that you push up to release and I like that for ease of cleaning the mag.

I use Grams Engineering springs and follower kits only. I’ve not had any issues over many thousands of rounds.

You most likely will not get your slide to lock back reliably with these kits, but for many competition uses, you reload before the. So it’s not a big deal. I don’t even have a slide stop on my CZ TSO, just a pin.

Other factors to be aware of are if you also use a mag well, they may not work together. Also, it’s easier to slam a mag home hard enough to cause an over insertion issue with the slide locked back and either jam it up or bend the ejector.

With that said, I say buy them, you’ll be happy.

My only experience is factory Glock and Beretta's plus 2 extensions for their magwell kits. Both have worked well for me, but I have been strictly a range shooter. No competitions or duty use. Not dropped, flung or carried loaded for extended periods. Also, no where near the $50/ each you're looking to spend. My $.02

Since you said overall experiences I’ll say that my Glock +2 extensions for my 9mm Glocks have been perfect. Also the MecGar extensions for my Sigs in 9mm, .40 and .357 Sig and my 9mm Berettas have been flawless.

I have only used Glock + mag extensions in my duty Glock. Used them on my G22 and now on my G17. Banged up. Hit against things. Scraped along drywall and concrete. Dropped on concrete, grass, dirt, and sand. Even stripped out of gun and thrown down. No issues as of yet.

We have a guy in our current academy class who is using a P320 Legion as a duty gun. He is using some kind of mag extension to accommodate the extended magwell on the gun. I believe he said they were factory extensions, although I've not examined them myself. We were working mag change drills a couple of weeks ago and just about every time his mag would hit the floor the extension would either pop off or at least slide partway out of position. And that was an empty mag without the weight of any extra rounds in it.

Everybody else in the class was using boring factory mags with standard baseplates, and he was the only one having problems. I'd definitely make sure that whatever solution you go with is thoroughly vetted. I'd rather have 17 or 18 rounds in a magazine I'm confident in than 24 that might fly out the bottom if it gets bumped hard.

quote:

Originally posted by 92fstech:
We have a guy in our current academy class who is using a P320 Legion as a duty gun. He is using some kind of mag extension to accommodate the extended magwell on the gun. I believe he said they were factory extensions, although I've not examined them myself. We were working mag change drills a couple of weeks ago and just about every time his mag would hit the floor the extension would either pop off or at least slide partway out of position. And that was an empty mag without the weight of any extra rounds in it.

Everybody else in the class was using boring factory mags with standard baseplates, and he was the only one having problems. I'd definitely make sure that whatever solution you go with is thoroughly vetted. I'd rather have 17 or 18 rounds in a magazine I'm confident in than 24 that might fly out the bottom if it gets bumped hard.

Yeah, as Rogue mentioned, if its a range gun it really doesn't matter. I'm there, but also don't want to fork over $50 a pop if they are gonna make my shooting experience frustrating. I've got some shield baseplates on a few DWX mags already that I bought used. I'll give those a shot and stick with Henning Factory baseplates for now. Maybe in the future I change over all of them to Henning.

I've had no issues with the Glock brand extensions when used in combination with the metal bottom plate - as they come from the factory. However, I've had failures like Rogue mentioned with aftermarket extensions. (Smacked the extension on a kitchen counter and proceeded to poop ammo, spring, and follower onto the floor.)

It was my kitchen, so no harm and no foul, but I decided from that point to only trust factory extensions from the manufacturer.

With the one possible exception of the Magpul extended mags for Glock, which have been perfect. I don't really include those though, as they are actually built for a higher capacity and are not just an extension added onto a factory part. (Thinking of the G26 12 round mags here)

I've also had good luck with the ones that are just for an extension without adding capacity - similar to the Pearce pinky grips on baby Glocks and one other brand I can't recall for my Mk III.

quote:

Originally posted by OttoSig:
I'm looking at some Henning +6 mag extensions for the DWX. It'll never be a carry gun so why not make all mags 24+1 is my thinking.

I've always been hesitant to add +# extensions as I considered it a fairly risky failure point. These do however come with a spring kit for "increased reliability"

My question, what's your overall opinion of + extensions. at 48$ for each kit I truly expect it to function 100%.

Is it a crapshoot with reliability in your experience?

If your expectation is 100% reliability DO NOT purchase these extensions with the 24+1 springs and followers. The 24 rounds mags are intended to be used for USPSA carry optics in order to get the highest amounts of rounds in a mag based on the mag length of 141.5mm per the USPSA rules.

These kits use a cut down follower to allow more rounds to be loaded. Often the slide will not lock back on the last round.

To get them to be reliable requires some break-in and tuning of the mags, your ammo, etc. Henning's makes great stuff. Using the Henning extension with stock followers will be much more reliable and require less tinkering to get running 100% but you'll give up a round or two of overall capacity.