M&P 9mm 10 round Magazine

[LifeTimeRiches]

I just got my brand new M&P 9mm with 10 round capacity. I never shot it yet, but I did load the magazines. I can only fit 9 rounds in both mags, even with a UpLula speed loader only 9 will fit. This is my very 1st handgun, so forgive me if this is a stupid question. Am I doing something wrong? Or is the spring just so new and tight 10 rounds will fit after a few loadings?

 

[missiondude]

They will eventually take the 10 rounds, but it will then be very difficult to insert the magazine into the gun if the slide is forward. Sometimes, the fully loaded 10 round magazines induce a malfunction. I dodnt know why they had to cut it so close on the 10 round mags. The 17 round mags have some play when fully loaded, the 10 round mags are just too damn tight.

 

[OKFC05]

Simple: Your state government will charge the company with a crime if it is possible any way to somehow get more than 10 rounds in the magazine, ever.
Therefore, the required magazines are too tight for proper functiioning when new.
Aren't you glad your state government is helping design your guns?

 

[Jabbit]

I just got my brand new M&P 9mm with 10 round capacity. I never shot it yet, but I did load the magazines. I can only fit 9 rounds in both mags, even with a UpLula speed loader only 9 will fit. This is my very 1st handgun, so forgive me if this is a stupid question. Am I doing something wrong? Or is the spring just so new and tight 10 rounds will fit after a few loadings?

I have the same issue. The speedloader will NEVER load the 10th round. You may be able to get it in by hand, but I just go with 9 rounds. When the 10th round is loaded, it feels funny when loading it into the handgun.

Also, if you need additional mags, check HERE

 

[missiondude]

Simple: Your state government will charge the company with a crime if it is possible any way to somehow get more than 10 rounds in the magazine, ever.
Therefore, the required magazines are too tight for proper functiioning when new.
Aren't you glad your state government is helping design your guns?

He did not mention where he is from, but I figure its one of the big 4 when it comes to nanny state anti-gun laws (NY, NJ, MA, CA). Gawd do thost 10 round mags suck...

 

[1fly2ty]

I know this will be a difficult concept to understand but here you go! If you can't get 10 rounds in the mag,load 9 put it in the gun, rack the slide to load a round remove the mag add 1 round and you now have 10 rounds in the gun! I'm betting the idiots in the goofyfornia legislator figured that if they allowed a true 10 round capacity magazine, that a person could actually load 11 rounds in the gun! Just my theroy and may be incorrect.

 

[OlympicFox]

I know this will be a difficult concept to understand but here you go! If you can't get 10 rounds in the mag,load 9 put it in the gun, rack the slide to load a round remove the mag add 1 round and you now have 10 rounds in the gun! I'm betting the idiots in the goofyfornia legislator figured that if they allowed a true 10 round capacity magazine, that a person could actually load 11 rounds in the gun! Just my theroy and may be incorrect.

Sorry, but I don't think your theory works well. If the law says that a 10-round mag is the max, then it's the magazine that they're talking about.

Additionally, in IDPA, the rules state that the gun shall be loaded to the Division capacity so technically it's a no-no to start out with only 10 rounds total in a 10+1 gun.

FYI, my Sig P226R 10-round magazines take 10 rounds easily. I have a bunch of 9mm & 357/40 10-round mags for IDPA so I don't have to count and/or worry about screwing up and load 11-rounds and have to take a penalty. OTOH, when not in competition, it's loaded with 15 rounds of 357-SIG.

 

[mkygod]

same issue here. I use the uplula and when i try to push down after 9 rounds, it comes to an abrupt stop halfway down for the insertion of the 10th round. This abruptness makes me think that the spring is at its maximum compression and it won't be possible to ever fit that 10th round. I have the matte mags with the gray plastic follower.

 

[chuck s]

Yep, manufacturers are so afraid of the 10 round laws in the Occupied States that they make it impossible to get that 11th round in there by making it impossible to load 10!

I know it's possible in some pistols to use a 10 round .40S&W magazine (a legal magazine even in the OS) and get 12 rounds of 9mm working. It's a magazine restriction, not a pistol restriction. And, really, unless you hold up the local liquor store no one cares.

-- Chuck

 

[LifeTimeRiches]

OK, so here goes the story. I called S&W and asked them about the 10th round in the mag and they said its a stiff spring and will loosen as you use the gun. Eventually you will be able to put 10 rounds in the mag. I am in NJ using the matte mags with the grey plastic feeder/follower. Blasted 150 rounds through it last night, still not even close to getting in the 10th round. In case you are all wondering, I was using the green and white box of Remington UMC 115 grain and not one single problem.

 

[southchatham]

I've had my 9c for 15 months and I still can only get 9 in the magazine. I just except it.

 

[mkygod]

Yep, its not gonna happen unless you happen to get a lucky mag or modify the mags somehow by cutting the spring or filing down the follower. Dunno if that's ever been tried, but definitely not recommended though.

 

[chriswvr]

Mine were next to impossible to fit the 10th, but now after 500 rounds through it, it is starting to get a little easier to fit the 10th.

 

[hoochrulez55]

ive had the same problem with that final 10th round going into the mag. im in canada so ya our 10 round law sucks!

 

[g_conway]

I know this will be a difficult concept to understand but here you go! If you can't get 10 rounds in the mag,load 9 put it in the gun, rack the slide to load a round remove the mag add 1 round and you now have 10 rounds in the gun! I'm betting the idiots in the goofyfornia legislator figured that if they allowed a true 10 round capacity magazine, that a person could actually load 11 rounds in the gun! Just my theroy and may be incorrect.

IDPA issue? Min load = max mag(or 10) +1 in pipe.

 

[jbinbi]

wow. great thread to come across . have had mine for 9 months, only get 9 rounds in it, was wondering about it all the time, but just accepted it. Figured the spring was very tight and would loosen in time.

I keep a loaded mag in my safe to try to loosen it. Someone told me not to keep the mag loaded, it would prematurely wear out the spring, but I don't think that is an issue here...

 

[JaseC]

Move to Texas my 10 round mag friends! Problem solved. Actually I bought 2 of the 10 round mags strickly for reloads in IDPA. Same story as everyone here and the 9 was a you know what to load, 10th round, forget it. SO I called S&W, told them my issue. Sent them the mags back and they sent me 2-17 rounders. Problem solved. Now when I reload mags for IDPA, I have to count bullets.

 

[agksimon]

I had the same problem with the 12 round mags for my 9c and could only put 11 rounds in them. It is not the spring, but rather the follower is too tall. I disassembled them, ground off about 1/16" from the legs of the followers, making sure there were no burrs from the grinding and a slight bevel, so they won't hang up. They now take 12 rounds with no problem.

 

[Jabbit]

By the way, I have 2 10 round mags for sale

HERE

 

[LifeTimeRiches]

New update, I was showing a friend my UpLula speed loader and I said I can't get the 10th round in my mag. He says lemme see that 10 round mag and that UpLula. He pushed down hard and wah-lah the 10th round went in with no problem in both mags. I put 350 rounds through the gun in case you were wondering. So all you have to do is just push hard on the 9th round and the 10th will fit. Its fits just perfectly. Don't force it, just apply steady pressure.

 

[Houdini1953]

Move to Texas my 10 round mag friends! Problem solved. Actually I bought 2 of the 10 round mags strickly for reloads in IDPA. Same story as everyone here and the 9 was a you know what to load, 10th round, forget it. SO I called S&W, told them my issue. Sent them the mags back and they sent me 2-17 rounders. Problem solved. Now when I reload mags for IDPA, I have to count bullets.

Actually you don't have to count rounds because all you have to do is look at the magazine and it clearly shows how many rounds, but in competition you might want to load only what you are supposed to by setting up boxes that have just the amount required for any event!

 

[T-BoneFL]

I just picked up a new M&Pc 9mm last night. Weapon has the 10-round mags and I was able to load both mags with 10 rounds by hand. Tenth one was not too difficult. But the mag did not completely seat well when the slide was forward (I was goofing around with it and did not want one in the chamber).

I guess I could have slapped the mag harder, but did not want to force it and maybe break something. Maybe that's an irrational fear

But is sounds like this gun won't handle 10+1 in a stock condition, even after the springs break in?

 

[LifeTimeRiches]

I put 1000 rounds through mine since I posted this thread. The 10th round is still a little difficult to get into both mags but it does fit when using a speed loader. However with the slide forward and 10 rounds in the mag it will not click into place. Only with 9 rounds will it click into place nicely. Also noted I called S&W and asked about the slide stop being difficult to release with just my thumb. They said it is a "Slide Stop" not a "Slide Release". With the mag ejected and 1000 rounds breaking in the gun I can now use the "slide stop" as a "slide release" but it is a little tight. When a loaded mag is inserted with the slide back the slide stop now becomes a slide release with ease. Now, when you insert a loaded mag and slam it into it with the slide back sometimes it auto loads and releases the slide stop. I also called S&W on this after watching videos on YouTube and they told me it is an M&P gun, imagine you are in a gun battle and you need to load a new mag fast! The slide lock is meant to auto load the round, it could be the fraction of a second between life and death. I am in the air about that with many others confused if that is just a flaw in the gun. But, then again S&W came up with a good argument of why it does that. My opinion is if its meant to do that then why do you have to SLAM it in.

 

[JaseC]

Actually you don't have to count rounds because all you have to do is look at the magazine and it clearly shows how many rounds

Well, throughout my years of shooting experience, I'm not going to trust how many rounds are in a mag by simply looking through the holes. I have seen on a few occasions, rounds double stack in a magazine on one side.

 

[scootle]

I keep a loaded mag in my safe to try to loosen it. Someone told me not to keep the mag loaded, it would prematurely wear out the spring, but I don't think that is an issue here...

don't worry... springs only wear with repeated cycling. storing a spring compressed should not damage it significantly. i'm in the habit of keeping 2x 10-round mags filled in the safe with JHP rounds for zombie invasions. I use my other 4 magazines for range use and rotate them once in a while.

New update, I was showing a friend my UpLula speed loader and I said I can't get the 10th round in my mag. He says lemme see that 10 round mag and that UpLula. He pushed down hard and wah-lah the 10th round went in with no problem in both mags. I put 350 rounds through the gun in case you were wondering. So all you have to do is just push hard on the 9th round and the 10th will fit. Its fits just perfectly. Don't force it, just apply steady pressure.

this is pretty much the trick. just drop $20-30 on a LULA and don't look back. you might have to stand on it the first few times to get the 10th round in, but it will eventually work.

I just picked up a new M&Pc 9mm last night. Weapon has the 10-round mags and I was able to load both mags with 10 rounds by hand. Tenth one was not too difficult. But the mag did not completely seat well when the slide was forward (I was goofing around with it and did not want one in the chamber).

I guess I could have slapped the mag harder, but did not want to force it and maybe break something. Maybe that's an irrational fear

But is sounds like this gun won't handle 10+1 in a stock condition, even after the springs break in?

here in Kalifornia, state law is 10 rounds on the magazine, but you are always allowed the +1 chambered if you so choose. inserting a 10-round magazine on a closed slide can be a problem though, so you have to be extra-vigilant when loading up if you don't slap the magazine hard enough. i learned this the hard way a few times during training classes... i don't think you should have malfunctions due to the 10-round mag being jammed up against the slide, but you WILL have malfunctions if the magazine isn't seated properly... e.g. BANG -- click.

while it's an extra step, i slap the magazine in and check/slap it again before i holster, just to be sure. one of the accommodations we have to make for our awesome nanny-state!

 

[Fir Fer]

Had same problem with the 10 round mags for my MP45f, got a Lula loader problem solved.

 

[anthonyresto]

Greetings from New Jersey… After upgrading with the apex tactical trigger and sear, the storm lake extended and ported barrel, the Sprinco recoil spring and the Hogue finger grip. I cut 3 loops off the spring of my 2 mags and filed down the guide. So much easier to load all my rounds and the 10th is like nothing. More important to me is I could insert the clip with the slide back or forward. I guess I should say Hello because I am new to the forum and let you know I just got my firearms license 2 months ago and yes my M&P is my first gun. I have put about 1500 (trouble free) rounds through my full size M&P 9mm and I am in love... 500 more rounds waiting for my day off on Monday.

 

[g_conway]

I just cut 1/2 loop out of the bottom of the spring and rebent the bottom and now all my mags work great. No problem with the 10 and will not even come close to 11. It also cleaned up the "hard to seat when full" issue.

 

[Canuck44]

Yep, manufacturers are so afraid of the 10 round laws in the Occupied States that they make it impossible to get that 11th round in there by making it impossible to load 10!

I know it's possible in some pistols to use a 10 round .40S&W magazine (a legal magazine even in the OS) and get 12 rounds of 9mm working. It's a magazine restriction, not a pistol restriction. And, really, unless you hold up the local liquor store no one cares.

-- Chuck

Either that or we are just seeing poor quality control with a spring supplier sending the manufacturer springs that are to stiff and the manufacturer not carrying enough to insist on better quality control. I suspect the latter.

Take Care

Bob

 

[Knightrider03m]

I never had that problem with non of my M&Ps but always had that problem with my Sigma and my SD. I just forced the extra round in the mag and let the mag sit fully loaded for a week or so. After that, it should be easy to fit all 10 rounds inside the mag.