I have a few ARs and with all of the back and forth regarding the pistol braces, I just started pinning and welding muzzle devices to all of my barrels ... just in case. When I came to doing my AR22, I ran into a bit of a problem. I have a 9" barrel and couldn't find a muzzle device that would bring it to 16".
I ultimately went to Home Depot and got a length of 3/4" conduit in the electrical department. I took an A2 flash hider and turned it down to .002 larger than the inside diameter of the conduit and then hammered it into the conduit. I then welded the conduit to the A2 and cut it to an overall length of 7.5" and pinned and welded that to the barrel.
Didn't come out too bad ...
Surprisingly, it added very little weight.
I ultimately went to Home Depot and got a length of 3/4" conduit in the electrical department. I took an A2 flash hider and turned it down to .002 larger than the inside diameter of the conduit and then hammered it into the conduit. I then welded the conduit to the A2 and cut it to an overall length of 7.5" and pinned and welded that to the barrel.
Didn't come out too bad ...
Surprisingly, it added very little weight.