AR barrel

[Paper Boy]

Alright was helping a buddy look over all the parts he collected for his build and I peeked down the barrel, where the gas hole is drilled inside the barrel there is kind of a lip of material.

I am assuming its pieces that didnt come off when the hole was drilled. We tapped it with a cleaning rod and most of it came out but there is a still a bit of junk left around the edge of the hole.

Sorry pics didnt turn out, I will try again tonight.

So any way the question is should he worry? I dont remember ever seeing that on any of my builds, but I don't even remember looking...

[kcstott]

Shoot it. It's just a burr and will come off with the fist shot.
If it was a AR with a target barrel I'd say cast a lap and push it out to save any minor damage to the barrel. But a little burr is not going to be an issue in a barrel not designed for the upmost in accuracy. I'd do it even on my AR M4 copy

[VytamenC Tactical]

Run just the cleaning rod down the barrel with no attachment on it this should knock it off if you think it is a problem. But if you took it out and shoot it this would do the same thing. Either way it shouldn't be a problem

[Paper Boy]

Ya thats what I figured, just never seen it befor.