Barrel crack, or faulty machining ?

[Shakey]

Fired 610 rounds of factory 110 grain Aguilla andd PPU ammo through a new Kahr/AO carbine. Noticed a crack (?), or poor machining (?) on the barrel where the rectangular piston section transitions to the circular barrel section. Any thoughts? See the photo.







F:\suspected barrel crack edit - 1.jpg

[RustyIron]

Metallurgist? Machinist?
It's ok that the picture isn't displayed, as I'm fairly confident your barrel is fine.

[Shakey]

Metallurgist? Machinist?
It's ok that the picture isn't displayed, as I'm fairly confident your barrel is fine.

Thanks for the RustyIron reply.