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Posted: 1/14/2021 12:45:48 PM EST
Asking here because the archives are down.  Never has this be an issue before, but is it normal to hear a metal ring noise when the bolt carrier comes forward and stops at the barrel extension.  Looks like its hitting the barrel extension and thats where the noise is coming from.   Should the carrier come that far forward or should there be a miniscule gap so the carrier and extension don't hit?  Hoping I dont have a headspace alignment issue or anything, although it IS a used barrel and carrier.  Thing shoots fine, but I don't want to be causing wear or a part that shouldn't be wore that way.  Thanks!
Link Posted: 1/14/2021 1:00:34 PM EST
The front of the carrier stops against the rear face of the barrel extension.
Link Posted: 1/14/2021 1:06:09 PM EST
Carrier to barrel extension is hard contact.
It's quieter when stripping/loading a round.
Link Posted: 1/14/2021 2:21:57 PM EST
Check the gas tube to gas key alignment, but that twang is usually when the BCG is leaving battery.
Link Posted: 1/14/2021 2:25:10 PM EST
What kind of flash hider you using? Some forked models will ring all day.
Link Posted: 1/14/2021 2:52:00 PM EST
[Last Edit: 1/14/2021 8:46:08 PM EST by Camaro69396]
I am using a usgi three prong hider.  Never knew that had any bearing on the sound the bolt carrier made when it came forward.  Good to know!  Lol.
Link Posted: 1/14/2021 2:53:17 PM EST
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Originally Posted By msgriff:
Check the gas tube to gas key alignment, but that twang is usually when the BCG is leaving battery.
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Will do!
Link Posted: 1/14/2021 2:54:28 PM EST
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Originally Posted By RDTCU:
Carrier to barrel extension is hard contact.
It's quieter when stripping/loading a round.
View Quote

Exactly this.  When chambering a round it goes away.
Link Posted: 1/14/2021 4:43:20 PM EST
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Originally Posted By brownbomber:
The front of the carrier stops against the rear face of the barrel extension.
View Quote

And after ~200k rds this hapens.....


Attachment Attached File



Link Posted: 1/14/2021 8:09:10 PM EST
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By JohnSmith6073:
What kind of flash hider you using? Some forked models will ring all day.
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I would have to read a 1000 posts on this site before coming across a gem like this one. Best post I read all day.
Link Posted: 1/14/2021 10:02:00 PM EST
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By Tigwelder1971:

And after ~200k rds this hapens.....


https://www.ar15.com/media/mediaFiles/416992/Screenshot_20210114-154214_Gallery_jpg-1779187.JPG


View Quote

I don't know if that's a large frame, but that's what can happen when you use a DPMS LR-308 BCG in a Armalite AR-10 barrel extension.
Link Posted: 1/14/2021 10:06:19 PM EST
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By msgriff:

I don't know if that's a large frame, but that's what can happen when you use a DPMS LR-308 BCG in a Armalite AR-10 barrel extension.
View Quote View All Quotes
View All Quotes
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By msgriff:
Originally Posted By Tigwelder1971:

And after ~200k rds this hapens.....


https://www.ar15.com/media/mediaFiles/416992/Screenshot_20210114-154214_Gallery_jpg-1779187.JPG



I don't know if that's a large frame, but that's what can happen when you use a DPMS LR-308 BCG in a Armalite AR-10 barrel extension.

It's an M4. Originally posted here by Henderson Defense, rental business in Vegas (Battlefield Vegas).

I'd link the thread , but archives are down.
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