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Posted: 3/1/2006 3:58:03 AM EDT
I've got a YHM Phantom flash hider with the solid section that goes down. Every time I screw it on the section goes to the top. What a I doing wrong here?
Link Posted: 3/1/2006 4:03:58 AM EDT
[Last Edit: 3/1/2006 4:05:45 AM EDT by mr_wilson]
Are you using a crush washer, lock washer or peel washer?

Mike

ETA - most use a "crush-washer" and it's tighten, loosen, re-tighten, loosen re-tighten type installation, until the bottom is centered on the bottom.
Link Posted: 3/1/2006 4:53:15 AM EDT
The flash hider threads are 28 TPI, 0.0357 inches. If the FH is not indexing by 180 degrees that means it is off by 1/2 of 28 TPI or 1/2 of 0.0357. Take 0.0175 off of the rear of the FH with a lathe and it will now index correctly. The 0.0002 or 0.0003 difference will allow for 'crush'. Charles the Gunsmith.
Link Posted: 3/1/2006 9:02:05 AM EDT
A1 + lock washer = t3h win.
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