Has anyone have any experience with the 14 and 16 round magazine modifications for the M&P 22 comapct. The only reviews are on the sellers web site. The comment section on the youtube site from the seller has been turned off. Makes me think that the sellers modifications do not work very good.

It would be really nice to have an extra capacity option that works.

You are right - they don't work very well. Even more - don't work at all.
I took a risk and ordered one follower. Then adjusted another original one getting the same capacity... and get rid of both magazines after one shooting session. This pistol is just designed to flawlessly run with 10 rd and I'm ok with it right now.

Thanks for replying. We might be talking about two different suppliers. The option I am refering two requires a new follower, spring, and base retainer to get 14 rounds in the magazine. Just ordering a follower will not work with the factory spring. Sorry, I do not want to use their name as I have no experience with the product. To get 16 rounds in the magazine requires their aluminum base extension in addition to the new follower and spring. They offer two options on the follower: One does not lock open the slide on the last round and the other option does lock the slide back. Again thanks for the reply. Agree the OEM mags work great for the short time I have shot the pistol. Its more accurate then I thought it would be. I looked at these before some years ago but the ones I looked at had bad barrels. A lot of chatter marks and peopel compained of leading. Seems thats been corrected. Bad Batch???
Thanks again.

I don't remember the manufacturer, I tested it around year ago. The results were horrible so I didn't even bother to save the information and decided not to experiment anymore.
The one I tested locked the slide. That was my requirement.

10 rd mags work great and I I just have fun to practice reloads.

Well the parts I ordered for the factory magazines came in. I ordered the 14 and 16 round packages from Taylor Tactical and I can report these parts worked as advertised today at the range.
I fired 180 rounds and the only failure was one round did not fire after a good hit and it fired after reloading and turning 180 degrees. I shot 100 rounds of the last of my Winchester M22 (1200 FPS), 50 rounds of CCI standard velocity ammo(1070 FPS), and 50 rounds of CCI mini mags (1260 FPS). The M22 is the ammo that failed to fire. Usually get one or two failures of this ammo every 100 rounds.
I know its a small sample only 12 magazines worth but so far so good. The last 20 rounds were thur the 10 rd factory magazine.
The parts require no changes to the original magazines or parts so you can convert them back to 10 rds.
I would say the reviews on the supplier site are spot on.
Just wonder why no youtube independent reviews???
Theres a lot of reviews of the High Capacity Taurus TX and Kel-Tec P17 that people like a lot. Thats what got me started with looking for parts for the M&P 22 compact.

Did you get "Shockbottle follower" or "NicTaylor follower" ?

and... looking at Taylor Tactical website, I reminded myself what I had used - that was a redesigned follower from "NES Custom design".
The problem with NES was the spring. The idea was great, because the slide locked back and mag dropped flawlessly, but the spring was somehow hanging in the mag and stuck there compressed.

Right now I'm wondering if would it be possible to combine both - use NES follower with Tylor's spring...

Everything I ordered was on the Taylor Tactical site. I got the follower that locks the slide back because I did not want to worry about a dry fire which S&W does not recommend. It was easy enough to lock slide back and release the magazine. When I forgot to lock the slide at first it was easy enough to pull the magazine but I did not like the slide closing
without the resistance of a round so in short order I got the routine down. Pull slide back with the left hand, push up the slide lock with the right hand thumb, slide thumb down push the mag release.
The NES follower is not compatible with the Taylor Tactical spring. The NES follower only gives you two more rounds.
The existing OEM follower I believe can be modified per my measurements for two more rounds. You need .44 inches/7/16 inches of space to get two more rounds in the existing magazine. There is enough spring post on the follower and base post to get the .44 inches of clearance. 1/8" off the top and 5/16 off the bottom posts.The OEM spring will be completely compressed with two extra rounds. You can best fix this by filing the follower body at the upper post to get the OEM spring a little more room. Say 1/16 to 1/8 inch. Compressing the spring fully should not cause any issues. Check out the M&P full size 22 12 rd magazine. They use the same magazine for 10 rds by adding an aluminum post extension at the bottom spring plate. They use the same spring for both.

That's what I did. I got one follower from NES and redesigned OEM one for another magazine. Adjusting OEM follower was super easy.
But, both had the same issue with the spring. Not all the time, but even one time made this solution unreliable.

I'll check it. Thx for the tip.

It's not so important for me right now. 10 rd mags are even better for training and practice, having more reload procedures.

I have an M&P 22 Compact and I'm trying to think of a reason why anyone would want a higher capacity magazine for that gun. Very few people would consider it a viable option as a carry gun and why do you need more capacity in a target/plinking gun?

I don't have a .22 Compact, but my thinking would be "less time loading = more time shooting". That applies to all guns equally.

__________________
Alan
SWCA LM 2023, SWHF 220

But if someone consider it as defense gun, more bullets are always appreciated.

.22LR is great defensive tool, but requires more precise shots to achieve the same results as 9mm or .40 .
I'm OK with 10 cartridges in my 9mm 1911, but not OK with 10 with .22LR .

There is a reason why most mag-fed .22s only have 10-round capacities. The rimmed case of a .22LR doesn't play well when you lengthen the magazine and/or increase the capacity beyond ten rounds. Some manufacturers have managed to pull it off by making the mags double-stack (Taurus TX-22) or banana-shaped (Ruger 10/22), but a single-stack is best left at ten rounds. For those using a M&P .22 Compact as a defense gun, ten rounds that will most likely feed properly is a lot better than more rounds that likely won't.

My posting is about finding a reliable high capacity magazine option for the M&P 22 compact. Why:
To compete with Taurus and Kel-Tec.
Shooting games and the fun lasts longer.
Nothing wrong with 10rd magazines.
Nothing wrong with more options.
Rifles should not have all the fun.
Just check the internet about the Taurus TX22 with two 16rd magazines and the Kel-Tec P17 with three 16rd magazines. The Kel-Tec P17 has an MSRP of $200.00 but is selling for $400 plus.
Why do M&P 15-22's have 25 rd factory magazines?
Why do Ruger 10-22's have 25 rd factory magazines?
After Glock released the G44 one of the first questions was: where's the 15 round magazines...???
Why all the drum magazines?

You can easily increase the .22 Compact mag to 11 rounds with one easy modification - reduce the height of the pin on the baseplate from 16mm (factory) to 10mm. The mag will then hold 11 rounds and it will function just like the factory mag.

Factory on the left, modified on the right.

[IMG][/IMG]

__________________
Randy

Randyyr5: Thats what I am talking about. Free, easy, and reliable 10% increase in capacity for those of us that like more rounds in a magazine.

Thanks for the info.

My shooting buddy modified two of his magazines for 16 rounds and told me he had no issues/failures with 5 different types of ammo. Did not discuss the ammo used but I know he used Gold Medal match, cci Blazer, and some standard velocity ammo.
We also found out that the 16rd modified factory mags that dont like some ammo, the same ammo does not work in the 10rd factory magazines.
Hint: Initially he could not get 16 rounds in the magazines using a nail as a loading assist. The nail assist only gets you 15 with easy loading. The last round has to go in with the nail assist removed.
Also make sure the magazine spring is fully in the extension pocket. The spring can hanging up on the extionsion the first time you install it. Ckeck the back of the magazine. You will see a small window opening. Push on the visible spring to make sure its fully in the pocket.

I found out by acident trying to shoot as fast as I can that the M&P 22 compact is capable of machine gun like rate of fire. When I got it rocking both I and my shooting budding started laughing and he said it sounded like a machine gun. I could do it with both hands on the pistol. Just take a slighty loose hold before firing the first round. Let the pistol freely recoil, do not try to control it, and as it rebounds it will hit your trigger finger and fire again.
Its kind of like taking the pistol and rocking it/ shaking it back and forth in your hand. Watch where the bullets hit and adjust fire. It can be fairly accurate.
Once you get the hang of it you'll wish you had more rounds in the magazine.

This applies not only to M&P22C
It's called "bump firing"