Questions regarding pinning and welding muzzle devise on barrel?

**NYH1** · 02-09-17, 01:59

I looked at some old threads and got some info, however I wanted to ask this myself.

Would drilling through a muzzle devise and into a barrel, then taping threads into them, putting a set screw slightly counter sunk so it could be welded (TIG) over be a legal way of permanently pinning a muzzle devise on a barrel to comply with the minimum length requirement? Then of course the four other welds that need to be done.

Thanks in advance, NYH1.

**TomMcC** · 02-09-17, 02:07

Yes, that would be legal. But the threading sounds like unnecessary work, a solid pin would be legal and less work. Why the threading method and what are the "four other welds" a reference to?

**NYH1** · 02-09-17, 02:17

I just figured putting a set screw in would be easy. I guess a solid pin would be easier.

If the barrel is under 16" and a muzzle devise in going to be added to make it 16" doesn't have to be pinned and welded in four places?

Thanks, NYH1.

**Iraqgunz** · 02-09-17, 02:50

No. It simply needs one blind pin and weld, or silver solder.

Originally Posted by NYH1

I just figured putting a set screw in would be easy. I guess a solid pin would be easier.

If the barrel is under 16" and a muzzle devise in going to be added to make it 16" doesn't have to be pinned and welded in four places?

Thanks, NYH1.

**GH41** · 02-09-17, 05:30

Originally Posted by Iraqgunz

No. It simply needs one blind pin and weld, or silver solder.

Not so sure in NY. Nothing would surprise me.

**Iraqgunz** · 02-09-17, 15:15

I have dealt with NY before, and I am not familiar with any such requirement.

Originally Posted by GH41

Not so sure in NY. Nothing would surprise me.

**NYH1** · 02-09-17, 18:43

So all I have to do is pin and then weld over the pin and I'm good to go? Like I said, the muzzle devise is going to make up the rest of the length need to be over the 16" legal length.

Thanks, NYH1.

**GH41** · 02-09-17, 19:21

Originally Posted by NYH1

So all I have to do is pin and then weld over the pin and I'm good to go? Like I said, the muzzle devise is going to make up the rest of the length need to be over the 16" legal length.

Thanks, NYH1.

If it is a muzzle device approved by the state.

**Alex V** · 02-10-17, 10:45

I thought you can't have any muzzle device in NY on an AR now? No brake, no flash hider, no compensator, no threaded barrel able to accept either. I guess unless it has no other features and no detachable magazine. Or registered lower? Not sure how it works.