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Posted: 9/10/2004 2:34:15 PM EST
I know a local machinist that said he would take on the task of threading my barrel for flash suppressor after the ban sunsets. What kind of specs or instructions do I need to give him? I want to put a Vortex or Phantom on the barrel.
Link Posted: 9/10/2004 2:51:46 PM EST
[Last Edit: 9/10/2004 2:52:47 PM EST by SBR7_11]
Threads must be concentric to the bore, you may decide to screw a real suppressor on there some day, and do not wish for baffle strikes to plague you.

Thread for 1/2-28 UNEF. Go for approx .625" thread length, with a relief at the shoulder to threads. Re-face end of barrel when done, as live center in muzzle will mash the rifling.
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