Had my first AR15 failure

[ARCHIVED THREAD] - Had my first AR15 failure

Posted: 8/23/2017 11:59:18 AM EDT

At some point the lug broke off, but remained in the barrel extension. Bolt cycled, but the broken lug prevented it from going into battery. Click, no bang, end of range trip

Posted: 8/23/2017 12:04:41 PM EDT

[#1]

How many rounds? What bolt?

Posted: 8/23/2017 12:31:53 PM EDT

[#2]

Quote History

Quoted:
How many rounds? What bolt?

View Quote

I wish I was that OCD and kept track

Bolt was MPI'd so not a crap one.

Posted: 8/23/2017 12:52:13 PM EDT

[#3]

Start carrying a spare bolt in your grip.

I keep a bolt, gas rings, cotter pin, & firing pin in my grip.

Murphy shows up at the worst times.

RTB has them $39.99 today NIBX

Posted: 8/23/2017 1:31:01 PM EDT

[#4]

Do you have a link to RTB?

And would I have to get a gunsmith to check the headspace before using the spare bolt?

Posted: 8/23/2017 2:29:13 PM EDT

[#5]

Quote History

Quoted:
Start carrying a spare bolt in your grip.

I keep a bolt, gas rings, cotter pin, & firing pin in my grip.

Murphy shows up at the worst times.

RTB has them $39.99 today NIBX

View Quote

~~RTB?~~ Ah, RightToBear.com

Posted: 8/23/2017 2:38:36 PM EDT

[#6]

Thanks!

Posted: 8/24/2017 11:47:23 PM EDT

[#7]

Quote History

Quoted:

Bolt was MPI'd so not a crap one.

View Quote

MPI will only pick up if there a fracture crack in the metal, not if the metal was not heat treated, the tempered correctly so the metal was not too brittle isntead (what was the problem and why the bolt lug sheared off.

If you get a hold of the bolt manufacturer, they will send you a replacement bolt for free. Hence the problem was the bolt was not heat treated, then tempered correctly, leaving the metal too brittle in the end.

[ARCHIVED THREAD] - Had my first AR15 failure

AR-15 » Troubleshooting

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