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Posted: 11/28/2003 9:42:38 PM EDT
I am getting grooves on the inside of my bolt carrier on both sides directly below the large cutout. The grooves are relatively deep and are vertical in relation to the carrier. The carrier is a DPMS hardchrome. It is mounted in a new Bushmaster M4 preban 16" upper. What could be causing this? Should I get a new carrier. Is this something to worry about. Thanks for any info.
Link Posted: 11/28/2003 9:55:52 PM EDT
[Last Edit: 11/28/2003 9:56:30 PM EDT by RED_5]
got pictures? I can host/post them here if you like. I'll IM you with my email.
Link Posted: 12/6/2003 9:50:16 PM EDT
I'll post some pics now that the site is backup. Upon looking at it a little more closely it looks like some REALLY bad machine marks. They are pretty deep. Put pics up soon.
Link Posted: 12/7/2003 12:08:42 AM EDT
[Last Edit: 12/7/2003 12:09:17 AM EDT by _DR]
Originally Posted By ernieb: I am getting grooves on the inside of my bolt carrier on both sides directly below the large cutout. The grooves are relatively deep and are vertical in relation to the carrier. The carrier is a DPMS hardchrome. It is mounted in a new Bushmaster M4 preban 16" upper. What could be causing this? Should I get a new carrier. Is this something to worry about. Thanks for any info.
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You are not talking about the forward assist grooves, right? just checkin...
Link Posted: 12/7/2003 6:04:36 AM EDT
It sounds like these are just what you said, bad machining marks inside of the carrier, not where the bolt rides but in the back. I've seen them in many different carrier brands. They just make clean up a little more of a chore but I don't think it's something you have to worry about.
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