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4/19/2009 4:03:33 PM EDT
I bought an AK Concepts comp and put it on my 16" CMMG barrel.  I can't get it to line up properly.  It came with a crush washer.  The only thing I can think of is to add a peel washer as well,  I hve tried to re-install the comp a dozen times using different starting points.  Thoughts? Comments?  Am I a dumb ass?
4/19/2009 4:13:08 PM EDT
[#1]
A typical A2 FH is installed with a minimum of 90 degrees rotation, up to a maximum of 460 degrees of rotation to achieve indexing. Are you turning this FH far enough to allow it to be indexed?
4/20/2009 4:17:36 AM EDT
[#2]
I think so,  I gets tight about 30 degrees from being in alingment.  I am afraid that if I tighten it that much I will dammage the FH threads
4/20/2009 3:03:15 PM EDT
[#3]
A crush washer will allow you much more than the needed 30 degrees, assuming it hasn't already been crushed flat.  
As previously stated, you can go through more than 360 degrees.  As long as the crush washer is new, eat your Wheaties and crank harder.
Otherwise buy a new crush washer.
4/20/2009 3:10:00 PM EDT
[#4]
Quoted:
A crush washer will allow you much more than the needed 30 degrees, assuming it hasn't already been crushed flat.  
As previously stated, you can go through more than 360 degrees.  As long as the crush washer is new, eat your Wheaties and crank harder.
Otherwise buy a new crush washer.


Thanks, that is what I needed to know
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