7.62x39 AR15 Pistol - Add Your Input for an Affordable Build

[Hodgie]

Have you settled on a size?

Between 7" and 8" for the barrel from previous posts.

[ViperHummel]

I had a batch of Radical barrels from back in 2014 that needed the gas ports opened up a smidge more. I’m pretty sure I have 1 left. Time is rare these days, but if I find it (and my notes for gas port size) I could open it up and probably beat any price you’re looking at. It’s 7.5” on paper, but it’s really a 7” from muzzle to chamber. RF measured from muzzle to barrel extension end.

[Emptymag]

There really aren't very many places that carry 7.62x39 barrels - even fewer carry 7" - fewer yet have M4 profile vs HBAR.

None of the reputable places have barrels shorter than 10.5".

Palmetto State Armory is the only familiar place I can find a 7" M4/A2 profile barrel.

I've been Googling various terms and bookmarking anything I find - which is probably less than 6 in all.

[Hodgie]

There really aren't very many places that carry 7.62x39 barrels - even fewer carry 7" - fewer yet have M4 profile vs HBAR.

None of the reputable places have barrels shorter than 10.5".

Palmetto State Armory is the only familiar place I can find a 7" M4/A2 profile barrel.

I've been Googling various terms and bookmarking anything I find - which is probably less than 6 in all.

What's PSA want for their barrel? KAK is pretty reputable from what I remember, not sure how good their value line is though.

[Emptymag]

What's PSA want for their barrel? KAK is pretty reputable from what I remember, not sure how good their value line is though.

$100 - same price as the KAK 8".
I got my 16" mid length 7.62x39 barrel from PSA. The only non-HBAR I ran across at the time - they no longer carry it, as far as I can tell. Paid $100 for it.

https://palmettostatearmory.com/7-ar...de-barrel.html

https://www.kakindustry.com/ar-15-pa...elonite-barrel

[Emptymag]

It's rare to find detailed specs on these barrels, but I found these two which have the gas port hole size listed.
Is there a preferred size?


7.62x39mm M4 profile 7" - Magnesium phosphate finish - $89.99
.100" gas port diameter
https://www.centerfiresystems.com/p-...mp-barrel.aspx


7.62x39mm M4 profile 7.5" - Stainless Steel - $89.99
.094" gas port diameter
https://www.centerfiresystems.com/p-...el-barrel.aspx

[ViperHummel]

Most places will hog out their gas ports knowing the variation of Ammo that will be used. My KAK barrels are pretty open which was a little disappointing for me, but they’re still sitting in a box anyway. My notes say I opened up the port with a 5/64 carbide flute bit (cut through the surface treatment) and then followed up with a #44 bit which translates to .086”. They worked fine for me after that, but a smidge bigger shouldn’t be bad.

[Emptymag]

Most places will hog out their gas ports knowing the variation of Ammo that will be used. My KAK barrels are pretty open which was a little disappointing for me, but they’re still sitting in a box anyway. My notes say I opened up the port with a 5/64 carbide flute bit (cut through the surface treatment) and then followed up with a #44 bit which translates to .086”. They worked fine for me after that, but a smidge bigger shouldn’t be bad.

Appreciate the input.

I hadn't replied to your post mentioning selling a barrel.
If it's not a heavy profile, I may be interested.
As mentioned, I have a heavy profile barrel on my 5.56 pistol, and I'd prefer something lighter on this one.

[ViperHummel]

Appreciate the input.

I hadn't replied to your post mentioning selling a barrel.
If it's not a heavy profile, I may be interested.
As mentioned, I have a heavy profile barrel on my 5.56 pistol, and I'd prefer something lighter on this one.

Haven't opened up the port yet, but might be able to today.
IMG_4378.jpg

[Emptymag]

Haven't opened up the port yet, but might be able to today.
IMG_4378.jpg

No rush. This will take some time to accumulate the parts.
Shoot me a pm so we can discuss.