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AR15.COM
8/27/2007 4:19:17 PM EDT
Steve, I have RRA Varmint A4 with the 18 inch barrel. I would like to put on a Yankee Hill Arms light weight free float forarm. Will I encounter any problems due to the size of the barrel. Thank you. Shawn
8/28/2007 5:28:14 AM EDT
[#1]
I answered your IM on the same subject with an IM.
For those who would also like to know, the barrel OD is slightly larger than the ID of the quad's bbl nut.  The nut has to be opened slightly to accomadate the barrel's diameter.
Steve/RRA