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14.5" 300 Blkout bbl with permanent YHM QD pinned on

krw

Sergeant
Full Member
Minuteman
Feb 28, 2004
1,442
399
Arkansas
I am expecting my YHM Phantom suppressor in soon. I would like to have built a 300 Blkout upper. I want to buy a 14.5" bbl and have a YHM QD adapter "pinned" on to make it the legal 16" length. Where can I send a bbl and adapter to have this done? Thanks! krw
 
If you can weld and have access to a drill press, you can do it yourself. Drill through the FH, then screw it onto the barrel. Deepen the hole about half the barrel wall thickness, just make sure not to break through into the bore. Make a pin out of the shank of the drill bit, drop in place, and mig or tig over it. Not too hard to do, but if you prefer to send it off, ADCO does this on a daily basis.