[type5]

Here is a video of an ACR Firing pin that has developed a malformed tip causing pierced primers. This has happened to me on M1A's and AR15's and I do not think it is a big deal. Replacing the firing pin is the only answer I know of:

http://www.youtube.com/embed/nrI1kcb9pIs?rel=0"

 

[ACRTOME]

thanks for the good info I have apx. 1100 rounds thru my ACR no failures of any kind- so far will keep an eye on this for sure though !

 

[bomjoon]

mine isnt that sharp but it is getting this ring around the tip like its been hit too hard and metal is moving back

 

[cjt50]

mine isnt that sharp but it is getting this ring around the tip like its been hit too hard and metal is moving back

Not knowing anything about the properties of working with titanium, almost sounds like some of the firing pins are not heat treated properly.

 

[bomjoon]

i will post up a picture of mine when I get home.
it looks like as if the metal they used is not strong enough and is starting to give...

and here I thought Titanium was strong .

 

[bigdog2003_99]

i got losman's old firing pin and its pretty banged up, i fired it and it had a light primer strike so i went back to the factory steel one and it worked fine

the weight difference between the 2 are pretty significant though-although thats the only difference i noticed

 

[cjt50]

Update 13 months 1500 rounds feed thru my ACR and I have gone thru 4 firing pins, i have shot factory, 5.56 and my own reloads. My reloads have no changed in the last 10 years and none of my other AR firing pins have shown such break up... it SUCKS
it's going back to BUSHMASTER again...second round

Wow, your still having problems, sorry to hear it.

Please keep us inform on how BFI handles this..

 

[bigdog2003_99]

lets just hope they replace the whole bolt carrier assembly this time, and not just say they did

 

[lencomatt]

A BCG isn't going to fix it, the problem is the titanium pin. Titanium is not the right material for a pin, it will always break in an impact environment. The only thing that might make it live longer is if the firing pin hole on the bolt is nice and tight around the tip of the pin. I'm thinking about having my old titanium with the broken tip machined off and have a steel tip put in it.

 

[bigdog2003_99]

my titanium pin has 2500 rounds on it and looks new, although i do keep my steel pin in my rifle in case of a failure

 

[kjsl105]

I have over 4k rounds through my acr and had to replace my firing pin about midway through IIRC. I have a few spares in case I run into it again anytime soon.

 

[oif0709]

I can't view the video on my phone. Is there a pic of what it looks like?

 

[cjt50]

My FP has 5040 rounds on it. Still functioning and looks almost new. I really think something else is going on with losman's rifle.

Really want to see how BFI handles this....

 

[tankertrooper]

I have about 2500 rounds with mine and it looks new.. Maybe it was from a bad batch of pins. improper alloy mixture maybe