DPMS Barrell Gas Tube Alignment

[Fishco]

Jgun,

Thanks for the idea, but I want to be able to swap out parts without altering them, if the barrel is the problem(And I am sure of it now) I just fix the barrel and then all standard tubes, gas blocks will all work, without fitting them.

I have tons of parts and I want to be able to go to a drawer and just pick up a part and slap it in.

On the side of caution, I am checking one more thing, one of my other fellow builders in my area has a DPMS 16" carbine barrel on order from DPMS, I am going to compare it to his when it comes in next week.

I will take pictures and post the results!

[survivalshop]

Here's a photo of my DPMS upper & gas tube , look at where it is .

This rifle runs flawlessly & I'm going to try to get your photo side by side to compare ,but its pretty close.

[Fishco]

Well as I expected the 16" & 20" barrels that I have, which are both stamped DPMS are machined wrong!

I just got my buddys new barrel today, straight from DPMS and there is clearly about 5/16" diffrence in the location of the gas port due to incorrect machining of the barrel.

I will post pictures and measurements later.

Got barrel set in my lathe and I am turning it to correct specs!

[98Z5V]

Got barrel set in my lathe and I am turning it to correct specs!

That is awesome - I'm jealous of your machinery.  <laughs> <thumbsup>

I wish I had my own shop, but the damn thing would have to be HUGE, to fit everything I want to be able to do...  :o