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BCM bolt chipped/dinged?

atomicmac97

Joined: Jun 2025

Posts: 1

EE: 0% (0)

USA

Posted: 6/1/2025 10:43:35 AM EDT

After cleaning up my most recent BCM upper, I noticed a chip/ding in the middle of one of the bolt lugs. I only have 250 rounds through the upper. I contacted BCM and they said it's fairly common to see and can happen during operation when there is debris or fragmented primers floating in the upper. They're not concerned, but I wanted a second opinion before I take them on their offer to send the BCG in for inspection. Thank you. BCM bolt

Dano523

Courses avec des ciseaux.

Joined: Mar 2001

Posts: 26153

EE: 100% (6)

USA

Posted: 6/1/2025 11:17:00 AM EDT

[Last Edit: Dano523][Edited] [#1]

Not a problem.

P.S. Welcome to the site.

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Nobody69s

Member

Joined: Nov 2014

Posts: 8576

EE: 100% (555)

USA

Posted: 6/1/2025 12:05:22 PM EDT

[#2]

That's a nothing burger.
Won't affect operation at all.

Vague

Probably tomorrow around 5:14p

Joined: Jun 2010

Posts: 10863

EE: 100% (46)

USA

Posted: 6/1/2025 12:38:54 PM EDT

[#3]

Wouldn't be a concern for me

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03RN

The Nostomaniac

Joined: Jul 2015

Posts: 50687

EE: 100% (84)

NH, USA

Posted: 6/1/2025 3:57:46 PM EDT

[#4]

I wouldnt be bothered but i also woildnt be surprised if thats where that bolt will eventually fail.

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lysanderxiii

Joined: Mar 2015

Posts: 3881

EE: 0% (0)

NC, USA

Posted: 6/1/2025 5:40:19 PM EDT

[#5]

Quote History

Originally Posted By 03RN:
I wouldnt be bothered but i also woildnt be surprised if thats where that bolt will eventually fail.

View Quote

Highlt unlikely to fail there.

Very low stress area of the lug.

snhar15

Member

Joined: Jan 2011

Posts: 369

EE: 100% (3)

NH, USA

Posted: 6/1/2025 6:20:03 PM EDT

[#6]

That's nothing. Don't worry about it.

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atomicmac97

Joined: Jun 2025

Posts: 2

EE: 0% (0)

USA

Posted: 6/1/2025 10:40:58 PM EDT

[#7]

Thanks everyone for the feedback and peace of mind.

Aaron56

Joined: Jul 2023

Posts: 1053

EE: 0% (0)

MS, USA

Posted: 6/2/2025 10:58:05 PM EDT

[#8]

Quote History

Originally Posted By 03RN:
I wouldnt be bothered but i also woildnt be surprised if thats where that bolt will eventually fail.

View Quote

I think we ought to be encouraging him to shoot enough so that he 'might' have to worry about it some day in the future.

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BCM bolt chipped/dinged?

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BCM bolt chipped/dinged?

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BCM bolt chipped/dinged?