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AR15.COM
AR Sponsor
2/25/2009 6:03:13 PM EDT
I have a Bushmaster Carbon 15 pistol that I have decided to put a YHM free-float quad-rail handgrip on.

When i put it on and tighten the YHM barrel nut down, the barrel still has a little bit of "slip). it will move out about 1/8 inch.

The stock barrel nut is significantly more shallow. It's not a standard barrel nut however.

What am I missing? Is there a washer of some type to take up this slack?
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