3913/14 slide Disassembly

doctorj357

Member
Joined
Mar 3, 2010
Messages
118
Reaction score
60
Location
MI
Can anyone tell me how to disassemble the slide on my 3913? I want to change out the firing pin spring, firing pin safety plunger spring, and extractor spring. Its just a maintenance I do with every used gun I buy.

But for the life of me, I can't figure out how to get it apart. I can get the decocker lever removed from the right side but not sure what to do about that. And I do see a roll pin for the extractor. But I've wacked that thing with a punch pretty hard and didn't budge. But more concerned about the firing pin spring.

Any info you can send over would be helpful.

Thanks
 
Register to hide this ad
To remove the firing pin and spring, you must first remove the safety assembly. Remove the right side lever as you have done before. Push the firing pin in while depressing the firing pin safety plunger on the bottom of the slide on the right; after the firing pin goes forward (quite far), release the safety plunger while holding in the firing pin. You will have to continue to hold in the firing pin while wiggling and pushing on the right side of the safety body - be careful as it comes out - a spring loaded plunger will jump out if it is not restrained. After the body is out of the slide, depress the firing pin safety plunger to release the firing pin; it too will try to jump out. This sounds like a difficult process, but will seem quite simple after you do it the first time. The slide can simply be locked back with the slide stop for this - all the parts are exposed at full slide lock.

To reassemble, place the firing pin (and spring) back into the opening while depressing the firing pin safety plunger; release the plunger while holding in the firing pin - it will be almost flush with the tunnel for the safety body. You will need to push it in a bit further (no need to hold in the firing pin safety plunger at this point) to allow the safety body to clear it. Hold in the safety body plunger until it is buried in the slide. One important consideration - DO NOT mix up the right side lever retaining plunger with the safety body plunger - the springs are NOT interchangeable, despite similar size and appearance.

To remove the extractor, you need a properly fitting punch. Drive the pivot pin out from top to bottom while supporting the slide (it must be removed from the frame) on some sort of wood or nylon blocks. It takes a bit of force to remove the pivot pin. To reassemble, use a slave pin to hold the extractor and start the beveled end of the pivot pin from the bottom of the slide. Drive it in until it is flush with the frame rail channel - check this with a magnifier and by touch. If the pin protrudes, it will either prevent the slide from going back on the frame or eat a groove in the frame.

Hope this helps...
 
I would avoid removing the extrator and F/P, mag safety plungers myself. The rear sight needs to be removed to change the plunger springs. If the extractor doesn't want to come easy then I'd leave it alone. The extractor is a factory fitted part and if it does become a problem S&W will fix it under warranty.
 
To remove the firing pin and spring, you must first remove the safety assembly. Remove the right side lever as you have done before. Push the firing pin in while depressing the firing pin safety plunger on the bottom of the slide on the right; after the firing pin goes forward (quite far), release the safety plunger while holding in the firing pin. You will have to continue to hold in the firing pin while wiggling and pushing on the right side of the safety body - be careful as it comes out - a spring loaded plunger will jump out if it is not restrained. After the body is out of the slide, depress the firing pin safety plunger to release the firing pin; it too will try to jump out. This sounds like a difficult process, but will seem quite simple after you do it the first time. The slide can simply be locked back with the slide stop for this - all the parts are exposed at full slide lock.

To reassemble, place the firing pin (and spring) back into the opening while depressing the firing pin safety plunger; release the plunger while holding in the firing pin - it will be almost flush with the tunnel for the safety body. You will need to push it in a bit further (no need to hold in the firing pin safety plunger at this point) to allow the safety body to clear it. Hold in the safety body plunger until it is buried in the slide. One important consideration - DO NOT mix up the right side lever retaining plunger with the safety body plunger - the springs are NOT interchangeable, despite similar size and appearance.

To remove the extractor, you need a properly fitting punch. Drive the pivot pin out from top to bottom while supporting the slide (it must be removed from the frame) on some sort of wood or nylon blocks. It takes a bit of force to remove the pivot pin. To reassemble, use a slave pin to hold the extractor and start the beveled end of the pivot pin from the bottom of the slide. Drive it in until it is flush with the frame rail channel - check this with a magnifier and by touch. If the pin protrudes, it will either prevent the slide from going back on the frame or eat a groove in the frame.

Hope this helps...

You sir, get a big Gold Star after your name. That is about as clear and direct discription of the process as I've ever read.

Charles
 
I've replaced all the lower end springs, including mag springs. That seemed to correct my problems. But, yeah I think that's what I'm gonna do, leave it alone. I may try the FP spring, but that's it. Right now the gun is working, so why fuss with it. Its just a habit of mine, changing out springs on used guns whether they need it or not. Its my primary CC piece and just don't want to go click and no boom!
 
Last edited:
3913/3914 Slide Disassembly

Search youtube for: Smith & Wesson Mod 4506 advanced takedown Part 3

Video on most of the slide takedown and does show removing the firing pin. Part 2 is the frame and Part 1 is general field strip. Worth a look.
 
Last edited:
Ty Deanodog and Paddington

That helped out greatly. I was able to get the safety out with no issues and replaced the firing pin spring with ease. I didn't mess with the extractor or the firing pin safety plungers cause they never exhibited any problems.

So now its all tuned up. Time to go make some noise :D
 

Latest posts

Back
Top