M&P 9 Pro Hiccup

[Static030]

Just looking for opinions. I'm pretty green when it comes to firearms, only realy 5 months shooting right now.
Anyway, last night at the range I was shooting my M&P 9mm Pro, using American Eagle 115 and 124gr. Everything went well with 150 rounds of the 115gr. Halfway thru the first box of 124gr I pulled the trigger, heard a hiss and then smoke came out of the gun at the chamber. I figured that it might have been a primer pop or something. Waiting a good minute and then tried to rack the slide back - completely locked up. Tried several attempt, lightly prying and what not....finally I determined that the slide would not go over the chamber, so I beat the chamber (I know I hated doing it) with the handle end of a screwdriver. Finally got the slide back and ejected the round. Turns out that the firing pin punctured the primer. I looked things over and everything seemed fine, the next mag I had two failure to fires and the primers on those rounds barely had a dent. I was worried that when the primer fired on the jammed round that it fried the end of the firing pin. Anyway, to try and end this long story - cleaned the gun and removed the firing pin which looks fine. On cleaning the hole where the firing pin goes in I got a little piece of metal, which looks like it might have been from the primer of the jammed round.
So do you think the pin will be fine, and the cause of the failure to fires was that little piece of metal getting in the way? I know the clear way to find out is go back to the range, but that won't happen for a week, so just looking for reassurance.
Thanks for your opinions.

 

[tiriaq]

A disc blanked from a failed primer would certainly cause problems. It would appear that you have cleared the pistol. If it were mine, I would take it back to the range.

 

[alpining]

If you did a complete disassembly and cleaned the striker channel, I think you're good to go.

 

[Trinimon]

^^ This.

To confirm your firing pin is somewhat working, try this...

On an unloaded gun, rack the slide and close it on the empty chamber.
Point the muzzle in a safe direction and insert a pencil into the barrel all the way to the back, eraser end first.
Pull the trigger. If the firing pin is functioning, the pencil should eject from the barrel.

 

[MTLGUN]

Once you've got it squeaky clean there's a few tests you can do first.

Hopefully you kept that defective round. Remove the barrel from the gun and drop the round into the chamber. Normally it should drop in nice and smooth and the base of the rim should be perfectly even with the back of the barrel hood. Test a few more rounds like this to be sure. If the rounds go to deep or they wont drop in deep enough without being forced you might have an issue. ( BTW - if that bad round is the source of the problem a nice e-mail to AE should get you a free box or 3 ).

From your description it was probably just that hunk of stuff that caused the problem and you should be good to go now.