[JNAP94]

HK 416 10.5" AH Date Code OTB upper with Stock : Rifle Magazines & Rifle Clips at GunBroker.com

 

[fargo007]

What are you seeing there that leads you to say so?

I'm missing it.

 

[RegularGuy461969]

Discoloration on barrel finish. You can see there is a heat mark.


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[Teufelshund Tactical]

Some good use out of that one for sure.

 

[LCSO264]

looks like she was run hard......

 

[fargo007]

Got it.

Yup, I'm with ya on this.

 

[Chopstix Kid]

That dark discoloration behind the gas block is carbon blowout. Mine gets this too if I don't clean it. Not saying that it has not been run hard, it's simply not a definitive indicator that the barrel is burnt.

 

[RegularGuy461969]

I'm talking about the discoloration at mid point of the barrel, looks cooked.


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[Chopstix Kid]

I'm talking about the discoloration at mid point of the barrel, looks cooked.


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If I run a suppressor on my gun, the blowout will reach damn near the barrel nut.

 

[RegularGuy461969]

If I run a suppressor on my gun, the blowout will reach damn near the barrel nut.

I put damn near 1500 rounds through my 416 10.4" upper in a day and half course and the carbon was pretty darn tame, almost not there. So I'd still say it's been ridden.

I'd love to see a better shot of the interior of the upper receiver and the piston.


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[Chopstix Kid]

I put damn near 1500 rounds through my 416 10.4" upper in a day and half course and the carbon was pretty darn tame, almost not there. So I'd still say it's been ridden.

I'd love to see a better shot of the interior of the upper receiver and the piston.


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As I noted, not saying that it has not been rode hard. Just not an absolute that the discoloration we see is from a burnt barrel. That's all. You really need a go/no-go guage stuffed in both ends of the barrel.

 

[RegularGuy461969]

As I noted, not saying that it has not been rode hard. Just not an absolute that the discoloration we see is from a burnt barrel. That's all. You really need a go/no-go guage stuffed in both ends of the barrel.

Be awesome to be able to do that on these transactions. It would really root out the dead barrels.


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[Chopstix Kid]

Be awesome to be able to do that on these transactions. It would really root out the dead barrels.


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Agreed!!!