AR15 Barrel Extension Machining Dimensions

[chime]

Hi, I am planning of installing a barrel extension to my .223 1:9 blank barrel. My problem is I cannot find the exact dimensions needed for the items listed below:

1. Measurements for the installation of barrel extension and thread pitch.
2. The correct length/protrusion of the loaded ammo when inserted into the reamed chamber. (for correct headspace)
3. correct measurements of the barrel ramp (angle/length)

Thanks for the help guys.

[GH41]

Hi, I am planning of installing a barrel extension to my .223 1:9 blank barrel. My problem is I cannot find the exact dimensions needed for the items listed below:

1. Measurements for the installation of barrel nut and thread pitch.
2. The correct length/protrusion of the loaded ammo when inserted into the reamed chamber. (for correct headspace)
3. correct measurements of the barrel ramp (angle/length)

Thanks for the help guys.

Google AR15 Barrel Extension Blueprint. It's real easy but probably not as easy as just buying one for 20 bucks. What does the barrel nut have to do with the extension other than pushing against the flange on it??

[Steve Shannon]

Hi, I am planning of installing a barrel extension to my .223 1:9 blank barrel. My problem is I cannot find the exact dimensions needed for the items listed below:

1. Measurements for the installation of barrel nut and thread pitch.
2. The correct length/protrusion of the loaded ammo when inserted into the reamed chamber. (for correct headspace)
3. correct measurements of the barrel ramp (angle/length)

Thanks for the help guys.

It’s all in the TDP:
https://ivanthetroll.keybase.pub/tdp.html

Get some go/no go and field headspace gauges.


Sent from my iPad using Tapatalk

[chime]

Google AR15 Barrel Extension Blueprint. It's real easy but probably not as easy as just buying one for 20 bucks. What does the barrel nut have to do with the extension other than pushing against the flange on it??

I misquoted it as Barrel Nut but what I really meant is barrel Extension. Thanks

[chime]

It’s all in the TDP:
https://ivanthetroll.keybase.pub/tdp.html

Get some go/no go and field headspace gauges.


Sent from my iPad using Tapatalk

Thanks. will dig into it in a while.