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3/13/2012 6:08:10 AM EDT
I bought a free float handguard used.  It's a one piece RRA solid rail and the previous, previous owner drilled and put a sling swivel in about the 1:00 position.

I want to time the handguard so the hole is in the 6 O'Clock position.  

I'd like opinions on whether it'd be better to shim the handguard back just over 1/2 a turn (cheaper) or should I dress the face of the receiver so I can tighten the handguard an extra 1/2 turn(more expensive, I don't have a cutter) ?
3/13/2012 6:20:36 AM EDT
[#1]
Depending on the amount you would need to take off to "face" it you could simply use a piece of sandpaper on a piece of glass to get it where you need it.  Start with a coarse grain and then work down to something finer.  I take it this is one of the perfectly round hand guards?  What is the material?
3/13/2012 7:04:49 AM EDT
[#2]
Quoted:
I bought a free float handguard used.  It's a one piece RRA solid rail and the previous, previous owner drilled and put a sling swivel in about the 1:00 position.

I want to time the handguard so the hole is in the 6 O'Clock position.  

I'd like opinions on whether it'd be better to shim the handguard back just over 1/2 a turn (cheaper) or should I dress the face of the receiver so I can tighten the handguard an extra 1/2 turn(more expensive, I don't have a cutter) ?


I have never tried it, but heard of people putting a o-ring on the nut before the tube, this will allow you to index it.
3/13/2012 7:16:05 AM EDT
[#3]
This is a solid aluminum handguard

Wouldn't an O-ring melt? this is at the barrel nut.
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