What an easy job to do! This was my first ever gunsmithing-esque job and it was such a breeze.

Used these great instructions

S&W M&P mag disconnect removal

And a link to a spring you can purchase so you dont have to modify a different spring. This one was drop-in

Mag Safety Deactivation Spring [1787] - $4.00 : Welcome to Speed Shooter Specialties

And heres me installing everything back together



Everythings been flawless since and dry fire practicing is MUCH easier. For those that do not want the disconnect safety, I highly recommend trying it out.

Agree! Good job!

I've done this on two M&P, along with installing Apex kits, and ended up with some good pistols made even better.

You can use a scrap spring to do this, but I think it is better to use the S&W one that Speed Shooters sells.

The last step for my M&Ps will be a new Apex trigger for each one, when it comes out in January (the aluminum ones are out, but a little pricey; I am waiting for the plastic ones).

Yea, I didnt want to risk the operation of the gun on my shoddy spring cutting job. I definitely want to try an apex'ed m&p. But as for now, i think I'm a lucky one with a great stock trigger.

Just a note here, for the rimfire owners. The internal trigger configuration of the M&P centerfire pistols is completely different from the M&P 22.

These techniques described for removal of the magazine safety disconnect in the centerfire guns will NOT work for the 22. It requires a different proceedure.

total newby question -- why do this?--------what is the improvement?
TKS

woodmnctry reply

The following are a few reasons to remove the safety:

1. You pull the gun to defend yourself. Somehow the magazine dropped out 1/4 inch and you were unaware of this. When you pull the trigger, no bang, as the mag safety will not allow the gun to fire.

2. Your in a "gunfight" and you've fired many rounds and lost count. You know you have one or more left, as the slide has not locked open. You decide to change the mag. Just as you drop the mag another "bad guy" comes around the end of the car, you are crouching behind.

You yell "wait a second, I need to get this magazine in". The bad guy says "take your time, I can wait".

The magazine safety prevents the gun from firing without a magazine inserted. Removing the magazine safety allows the gun to be fired with or without the magazine inserted. The example above would have allowed you to have fired at the bag guy, without the mag in the gun. You get one shot off, install the mag, rack it back and your good to go.



I've heard reasons for having the safety:

1. If a child gets hold of the gun, you left lying around, it will not fire without the mag. Are you going to leave a loaded gun lying around (with or without the mag inserted)? Are you going to leave any gun lying around where someone can get hold of it?

2. If you get into a struggle for the gun, all you have to do is drop the magazine and the gun will not fire. If your in a struggle for your gun, are you going to be in any position to be able to hit the mag eject button? I know it does happen, but unless you are wrestling with the person, before drawing your weapon, why would you allow this person to get close enough to grab your gun?

I own a Ruger LC9. It came with both a mag safety and a manual safety. On that gun if you pull the trigger without a mag inserted, the trigger does not move. The problem is you now have to figure out is the manual safety still on (trigger does not move), or did the magazine drop out a little (trigger does not move). This is the worst scenario, as there might be two reasons the trigger did not move. Do you have time to figure it out?


These are reasons I always remove the magazine safety.


I own a Shield 40 which does not come with a mag safety, but it does come with a manual safety. I use pocket carry and I always carry with the safety on. There are lots of people that do not like a manual safety. Their reasoning is they always carry with the safety off, but they worry somehow the safety might get accidentally "bumped" on. They need to use the gun in a SD situation and when they pull the trigger, not knowing the safety got bumped on, the gun does not fire. That is why they want the manual safety removed, to eliminate a problem that could occur, the accidental engagement of the safety.

Not everyone feels the same. Some will never modify a gun while others never stop trying to make their gun better (for them). This is true for these two gun safeties, some feel they are there for a reason and others remove them to eliminate any "accidental" issues. It is always a matter of personal preference.


Bob

the MAIN reason I wanted it disconnected was for dry fire practicing without having to have the mag in all the time.

I see the importance of it for LEO but civilians like us only draw a weapon if our lives are being threatened. An officer will train to drop the magazine if someone grabs for their handgun.

I think an officer will bonk the guy on the head if he grabs for his gun! I can't imagine anyone just dropping the mag and rendering the gun useless while they still have possession of it. And if they don't have it, then they can't drop the mag anyway.

Or am I all wet on this one?

I think youre all wet for the wrong reasons O__o

I think the rationale is that if they were directing an unarmed perp with their weapon, and they make a grab for it, dropping the mag renders it useless. Then the officer can draw their backup weapon or baton to subdue them. Any leo care to chime in?

Another benefit: you can end up with a M&P that does not have a magazine safety (which I do not want) which also does not have the warning printed on the side of the slide (which I do not want).

I am retired LE from Michigan. I don't know one officer that wants a magazine safety. I think some of you are unrealistic to actual practices. They want to be able to fire without a magazine. What if during the fight for the gun, the magazine gets released, but the cop gets control of the gun. He still wants it to fire. Do you really think in a life or death struggle for their gun, a LEO is going to be thinking about dropping the mag. He is struggling for the gun with all his might. He knows he is likely getting shot if the perp gets his gun. Does he have the ability to push that tiny mag release button during the fight? Not likely and the reason none of the departments in my area had magazine safeties.

We did not train to release the mag, we trained to retain possession of the gun and what to do in a fight for control of that gun.

Bob

Today I removed the mag safety from my M&P40c. What a simple job.
Here is a video that also shows how. How To Remove S&W M&P Magazine Disconnect Instructions - YouTube The Ace Hardware #1 spring costs $.40 .

Why remove the safety? Because I want to do dry fire drills and don't like having a magazine in the gun. It always says to me "the gun is loaded". Now, no mag and it'll dry fire.

I see a Tekmat with the M&P schematics. I have never seen one of these in any gun shop, gunshow or sporting goods store. Where did you get it?? All I ever see are the typical Glock and AR-15 mats.

Amazon.com: TekMat 11-Inch X 17-Inch Handgun Cleaning Mat with Smith and Wesson MandP Imprint, Black: Sports & Outdoors@@AMEPARAM@@http://ecx.images-amazon.com/images/I/515YVJSvsmL.@@AMEPARAM@@515YVJSvsmL

Or these folks.