I went to gun show today and picked up several rifles, RRA, colt, S&W and they didnt have any "play" between the receivers. I thought we we getting better parts. Tomorrow after work, I break the rifle down and measure the pins as wa suggested. I think I have a 0" to 1" micrometer.
Would getting pins from BCM, upper receiver manufacturer, or yankee hill, lower receiver manufacturer,take some of the play out of the rifle?