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?
Thanks.
Acceptable for m4 Barrel Extension?
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- Georgezilla
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- Georgezilla
- Master contributor
- Posts: 702
- Joined: Tue Apr 24, 2007 4:35 pm