Re: Free float issues
Does the stock have pillars? If so, the receiver should sit on them. It might be pivoting on the magazine in between. Make sure the mag box is fitted up properly to the receiver and there is clearance between the mag, the receiver and the stock...it doesn't need much but there should be some clearance.
Once the receiver fits into the stock properly, then you can relieve the barrel channel...if necessary.
Last edited by Top Cat; 07-29-2011 at 02:51 AM.