What he said.
Most gunsmiths are not qualified to thread barrels for a suppressor. A FH is no biggie for gunsmith but a suppressor needs to be precise.
Here are some test questions to ask:
1. If they thread the barrel concentric to the bore? This one is the biggie.
2. If they re-crown the muzzle?
3. If the shoulder is perpendicular to the bore?
4. Do they relieve the threads next to the shoulder?
5. What class of threads do they cut?
6. What kind of jigs they have made for threading barrels?.
7. Do they guarantee to replace the barrel if they mess it up?
If the gunsmith shrugs off or scoffs at any one of these questions, walk away. Their inexperience is not worth a blown up can.
Always test fire a newly threaded barrel on paper and check for key holes before securing the can to the barrel.
If you want it perfect the first time, every time......
Adco Firearms
Adco Firearms LLC AR-15, M16, M4 Carbine Gear, Parts, Accessories.
419.882.8079
Aquila
Aquila - Custom Rifles and Gunsmith Services
718-870-9398
GA Precision
Home - GA Precision
(816) 221-1844
American Precision Arms
American Precision Arms
706-367-8881
Hipes Consulting Services LLC
North Texas
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Tornado Technolgies
Tornado Technologies - Home page
503-690-8000
Tros
TROS USA
503-358-3708