cross drill and chamfer the last 2" of a barrel or cut off 2" and weld on a flash hider?

cross drill and chamfer the last 2" of a barrel or cut off 2" and weld on a flash hider?

Rifle, shotgun, pistol, blunderbuss? Make and model would help as well, there are clamp on flash hiders and brakes out there for a bunch of different guns. Think I'd get the barrel threaded before I tried welding a FH on.

16" ar

i went with a 14.5 m4 profile and a permanent phantom fh.

I'm looking at a 16" without a hider. My thought was to cross drill .25 holes 90 deg apart for 4 rings or 2". Clocking the holes 90deg to the next row.

i am not a big fan of drilling into the bore. i'd rather thread the 16" and install what ever muzzle devise you like or cut it back to 14.5-15" and permanently attach the muzzle devise.

Is it concern of changing the rifleing with burrs?

Is it concern of changing the rifleing with burrs?


that is my biggest concern.

You think the cross drilling could be timed to center on the rifleing?
I've never tried anything like this and just thought of it. How many grooves are in a barrel?

if you knew the twist rate and number of lands/grooves, with an indexer or 4th axis cnc mill, it would not be that hard to do.


edit: i certainly wouldn't try it on a harbor freight drill press:D

Hum...I have access to the mill.
I don't know the twist rate yet. Would this achieve the desired effect of flash hiding? As a cross drill 90deg to the bore or would the hole need to point upstream?

I don't know the twist rate yet.

It should be stamped on the barrel. What brand barrel is it?

BTW, don't drill the barrel, thread and attach whatever you want.

I haven't bpught one yet and the shop didn't say what it was. This is more of a can it be done and work hypothetical.

I haven't bpught one yet and the shop didn't say what it was. This is more of a can it be done and work hypothetical.

Then why don't you just buy what you want the first time?

Price and availability could determine the purchase of this compramise barrel.