Acceptable for m4 Barrel Extension?

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Georgezilla
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Acceptable for m4 Barrel Extension?

Postby Georgezilla » Sun Jul 14, 2013 12:39 pm

This barrel's m4 extensions have a ring that comes out past the barrel's chamber. It loops around most of the extension and under the chamber, like a helix.

I'm guessing this helix is a thread cut used to attach the barrel. My concern is that none of my other AR barrels have this exposed, rather large, possible thread. Seems like a good place to trap dirt and abnormal compared to my other barrels.

Do you guys think this is an issue of concern?

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Thanks.

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Bullseye
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Postby Bullseye » Sun Jul 14, 2013 8:00 pm

I don't see these marks as being harmful as long as everything measures out properly. If the chamber and barrel are in good order you should be fine.

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Georgezilla
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Postby Georgezilla » Sun Jul 14, 2013 8:11 pm

Thanks, BE. Like I said that cut looks like it's some sort of thread used to attach the extension, but I wanted to make sure it wasn't an issue before I put it on the upper.


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