My Weirdest Upper Yet.

[rickyrick]

I’ve had a 6.8 spc upper with a 16” barrel from Green Mountain Barrels a few years ago. No matter what I did, the upper would short-stroke and not pick up another cartridge about 90% of the time.
I finally decided that the gas port was probably too small. I had measured it once, but don’t remember what it was.

From my previous post, I decided to use the hand guard from the 6.8 upper on my 300bo brush gun.

I got to thinking… a dangerous game lol… since I already had the 6.8 upper disassembled I might as well give 6.8spc another try. After all, I already had money spent on ammunition, BCGs (I had a new spare 6.8 BCG also), magazine, etc.

A shout out to stangpanther because he wrote good things about ARP 6.8 barrels a few years back.

So just to be goofy, I ordered a 10.5 ARP barrel from blackstone.

I was impressed that he called me to ask my intended use for the barrel so he could drill the gas port accordingly.
I received the barrel in one business day and was even already dimpled for the gas block.
I installed a new gas block, gas tube, new BCG and pinned and welded a 6” flash hider. Everything I already had on hand except for the barrel.

I noticed that the gas block and barrel extension had a good snug fit.

Took it out and ran a few boxes of factory ammunition through it today and had zero feeding issues, so I’m very happy.





Sent from my iPhone using Tapatalk

[9x19]

Sweet... gotta love it when a plan comes together just right.

[rickyrick]

Even though this is an odd frankengun, it has the most satisfying shoulder thump of any of my rifles. I think I’m gonna get this upper it’s very own lower.

[MarkCO]

What is the optic on that @rickyrick?

[rickyrick]

What is the optic on that @rickyrick?

That’s an old weaver 1x crosshair with a Dot.

I went through a phase were I was buying vintage weaver scopes.

I like that one a bunch.

[MarkCO]

Originally Posted by rickyrick

That’s an old weaver 1x crosshair with a Dot.

I went through a phase were I was buying vintage weaver scopes.

I like that one a bunch.

Very cool!

[smee78]

I like the looks of this setup and am glad you got a barrel that shoots for you.

I always say I'm gonna just build a new upper, then always grab a stripped lower from PSA for like $30 and end up building a complete rifle.....It always ends the same way lol.