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Discussion Starter #1
Yesterday was Range day and have so far fired about 300 prior and 520 rounds or so to date through my ACR. After a good clean run of about 200 rounds, the weapon "clicked"...slap rack fire...click. racked another fresh round...click. I examined the 3 questionable rounds and they all had a light dimple in their primers. Loaded the three into an AR15 that was standing by...bang, bang, bang. This was confirmed with another few rounds before setting the ACR aside for the day.

This rifle is post recall production.

I didn't have time to strip it down last night but I'll get to it tonight. Has anybody had this experience?
 

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Haven't had that. Did you shoot the ACR at all after those three rounds? Be interesting to hear if you found anything after stripping it. I've seen other rifles do that but it was a busted firing pin.
 

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Give the firing pin a good look. The tip may be flatten instead of a nice dome shape. Either something is keeping the pin from going fully forward or the pin is messed up. Please let us know what you find.
 

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Well I after breaking it down I found that the tip of my firing pin had broken off, leaving me with a jagged edge...



Email sent to Bushmaster Customer Service
Oh, gzzzzz......

I hope this isn't a trend :(
 

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I hope you told them to send you a whole new barrel and extra gas block just for the hell of it...? for your inconvenience :D
 

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Ah, that's not good. I figured busted firing pin like I said above but figured it had maybe snapped in half or something. For the tip of the pin to break like that is weird. I mean if you're shooting really hard primers or really hot loads it'll speed up the process but that's awful fast for a failure.

I had a thought the other day, seeing as how the AR18 was the basis of the operating group I wonder if an AR180 firing pin from Armalite might not work?
 

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Hmm.....AR180, G36

That would be very interesting. Yeah if you guys could confirm this I'm sure it'd be helpful to know as a SHTF scenario, vise waiting on Bushmaster.
g36 is a no-go, the pin fits in the carrier but it is about 1/4 of an inch longer, and also has a smaller contact surface on the hammer side so it falls out of the carrier even with the retaining pin inserted, it does fit through the bolt though so if you could get it to stay in it could work, maybe some kind of adapter would work but i'm not rocket scientist lol

 

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Discussion Starter #19
They said it'll go out either today or tommorrow. I'll confirm shipment date tommorrow.[/QUOTE said:
Called Bushamster to see when the Pins went out. After being on hold for 7 min I hung up and called back to the repair line (hold time less than a minute) DO NOT DIAL 0!

Bushmaster sent them out regular mail on the 26th.
 
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