Evanix ar6k barrel

[Dr. Kralenstein]

Anyone know where to get a barrel that will fit this rifle? I want one to cut down and make a baffled shroud for the gun to bring it down in length.

Trying not to have to go the TJs liner route. I might pull the barrel and measure it, see if I can get a barrel for another platform to work on it.

 

[Long_Gun_Dallas]

Have you considered working with the one that's on it?

 

[Dr. Kralenstein]

Have you considered working with the one that's on it?

Oh yeah, but if I mess it up I've got a $400 paper weight lol.

It appears to be 14mm, so a kral barrel would fit it. I don't think they even have a transfer port on these barrels. The air feeds from the rear of the cylinder and blows the pellet out and into the bore. I have no idea how they're so accurate when doing that!

 

[Long_Gun_Dallas]

Fair point. The key is to not mess it up! Haha. Never stopped me from screwing things up, though.

Is the barrel easily removable? If so, it'd be real easy to get a kral barrel prepped for the Job.

 

[Dr. Kralenstein]

Fair point. The key is to not mess it up! Haha. Never stopped me from screwing things up, though.

Is the barrel easily removable? If so, it'd be real easy to get a kral barrel prepped for the Job.

I think so. I need to pull the scope and check under the front ring for a set screw. I bought it will scope on it and haven't even removed that yet.

If it's 14mm, then all I'd need to do is cut the back of a barrel down and make a leade, since there isn't a transfer port. Hopefully it doesn't step down into the receiver.

 

[Nomadic Pirate 66]

Should be pretty easy since they shoot out of the magazine so there isn't a transfer port, can't remember if they are threaded into the receiver or held by grab screws but either way would be an easy process for a machinist once you pull the original barrel out and measure it.

 

[Dr. Kralenstein]

Should be pretty easy since they shoot out of the magazine so there isn't a transfer port, can't remember if they are threaded into the receiver or held by grab screws but either way would be an easy process for a machinist once you pull the original barrel out and measure it.

I just pulled the barrel. It is indeed threaded and has a reduced section that is passed the threads that drops into the receiver and out to the cylinder. Beyond my capabilities at home. I'd rather find a donor barrel and chop/crown vs having one machined to fit.

This is an older Duk IL model, serial ends in 98, so I'm thinking it's from 1998. I think the newer actual evanix models are just grub screws to hold in place.

 

[Dr. Kralenstein]

I'm looking at some FX barrel liners and the OD on them appears to be close to the reduced section of the evanix barrel. I wonder if I could use one of them and make a sleeve to insert in the ar6 receiver. Worth a shot... pun intended!

 

[Dr. Kralenstein]

Here's how this barrel looks on the receiver side

The step down section is 8.5mm, and an fx liner is 8.08mm

I could get one of them and then shim with brass tubing or tin, and then run an 8mm ID/14mm OD aluminum tube shim to fill the gap in the breech. The barrel cavity in the breech is just a hair under 14mm.

I want a 16" barrel and I don't see where fx has one in that length, so has anyone had success with cutting a liner down? I know they're pretty thin and it could warp the muzzle area if I cut it to aggressively.

 

[Vetmx]

Kudos to Evanix. Very nice. A machinist should have no problem duplicating that on a donor barrel. Your other idea using a FX liner? You might be building a harpoon gun unless you bond that liner into a tube then thread the tube.

 

[Dr. Kralenstein]

Kudos to Evanix. Very nice. A machinist should have no problem duplicating that on a donor barrel. Your other idea using a FX liner? You might be building a harpoon gun unless you bond that liner into a tube then thread the tube.

That would make for some expensive ammo!


I would sleeve just that drop section with brass to fit the receiver, and it would be epoxied on the liner. Then the plan would be to epoxy a bushing on the liner ahead of the brass that would take up the space in the breech cavity. That would also have some set screw counter sunk into the sleeve, but not enough to dimple the liner and damage the rifling. There is also a set screw hole in the receiver to lock the barrel down.

 

[Vetmx]

You’re going to want the whole liner bonded to something for most of its length. Otherwise they are spaghetti noodles no matter how short you make it. In this picture you can see a very short liner from my DL compact. Serious spaghetti noodle. Had to eventually replace it with a real barrel. Not for accuracy, but for consistency.

 

[Dr. Kralenstein]

You’re going to want the whole liner bonded to something for most of its length. Otherwise they are spaghetti noodles no matter how short you make it. In this picture you can see a very short liner from my DL compact. Serious spaghetti noodle. Had to eventually replace it with a real barrel. Not for accuracy, but for consistency.

View attachment 471078

I can sleeve the whole length with carbon fiber. 2mm wall should do it I'd think. Then get bushings to fit over that and then grub screw down against the sleeve. That would stiffen it up and help prevent denting the thin liner.

 

[Vetmx]

I just dug through all my barrels and liners. I have a .22 smooth twist that I shortened to 14.75”. I kept the choke on that one and it’s a good strictly pellet shooter. I have some .22 Superiors that were 600mm and I shortened them to 500mm by removing the chokes for slug testing. Could easily be made 16” but I don’t know how a FX liner shoots a pellet without a choke.

 

[xsarfc9x]

Keep the thread updated on your work. I just got an older AR6 as well with peep sights. If a liner would work that opens up some options for slugs and heavier pellets.