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AR15.COM
9/18/2026 9:18:10 PM EDT
I like to clean and lube new pistols before shooting them for the first time. Everything is great on this pistol except I can't seem to get the barrel clean. It has that line in the rifling that will not come out.

What do you all make of this? Should I contact the company or just shoot it maybe it will buff out?

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"Don't want to be that guy with 100K primers who can't pay the electric bill."
9/18/2026 10:08:39 PM EDT
[#1]
I would not be happy with that
9/18/2026 11:08:25 PM EDT
[#2]
New one on me.  Hard to tell if it’s as bad as it looks tho.  I would shoot a bunch of jacketed and see how it looks then.
If life was easy nobody would quit.
9/19/2026 1:35:04 AM EDT
[Last Edit: KILLERB6][Edited] [#3]
I didn’t think to clean my brand new Tisas’ (Raiders in 9+45).

I just shot ‘em…and they worked.
I wanted a mission, and for my sins, they gave me one.
No rules today, sport…just orders.
It’s not about how many people you kill, it’s about how many you save.
9/19/2026 6:25:30 AM EDT
[#4]
Had that on my MEUSOC clone.

I cleaned it with a bronze brush a few times and still didn't get it all out so I just shot it.

It cleaned up better after but some remains = will try Wipeout bore cleaner next time.


“In America, the impossible is what we do best"
"(Paraphrased) The best days are still ahead, I really believe this. [Rush Limbaugh]"
When crazy people have a nuclear weapon bad things happen. - President Donald J. Trump
9/19/2026 7:51:26 AM EDT
[#5]
is it 'chatter' from the button during the rifling process?  Some of the marks look a bit uniform.
9/19/2026 8:15:11 AM EDT
[#6]
Looks like chatter from the rifling button
Today 12:24:32 AM EDT
[#7]
You should let Tisas USA know and have them replace barrel under warranty.
Today 2:41:31 AM EDT
[#8]
Yeah..... that doesn't look like fouling.
And then, he arrives at the last item on his bucket list...

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