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Old 11-20-2022, 02:38 PM
germargo germargo is offline
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Egging spot on a M&P15-22 barrel Egging spot on a M&P15-22 barrel Egging spot on a M&P15-22 barrel Egging spot on a M&P15-22 barrel Egging spot on a M&P15-22 barrel  
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Default Egging spot on a M&P15-22 barrel

On one of my M&P15-22 rifles visible egging spot on about 2/3 from the end of the barrel and 1/3 to the end of the handguard.
Is it a common thing from manufacturing, or may it cause the barrel faulty?
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Old 11-20-2022, 02:41 PM
germargo germargo is offline
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Egging spot on a M&P15-22 barrel Egging spot on a M&P15-22 barrel Egging spot on a M&P15-22 barrel Egging spot on a M&P15-22 barrel Egging spot on a M&P15-22 barrel  
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BTW: I just checked another rifle in my possession. On one of them, I found a closest but barely visible to the pictured egging spot in about the same location - about 2/3 from the end of the barrel and 1/3 to the end of the handguard.
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Old 11-20-2022, 02:42 PM
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I'd take a hard look with a bore light. If nothing internal, I wouldn't sweat it.
May be just an external flaw, hard to tell from your pics.
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Old 11-20-2022, 04:32 PM
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I prefer 'bacon' spots to go with my eggs
......
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Old 11-22-2022, 12:22 AM
Kp321 Kp321 is offline
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The first rifle barrel looks suspiciously like it has a ring from firing with some type of bore obstruction. A borescope will tell the story. Even if it is ringed, no worries. Not dangerous and most ringed barrels still shoot well.
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Old 06-03-2023, 03:33 PM
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Quote:
Originally Posted by germargo View Post
On one of my M&P15-22 rifles visible egging spot on about 2/3 from the end of the barrel and 1/3 to the end of the hand guard.
Is it a common thing from manufacturing, or may it cause the barrel faulty?

I checked mine. I have a similar spot-ring. I don't think it's a biggie. Probably just from a barrel holding grip tool during manufacturing and assembly.
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