Reply Have Blue April 24, 2014 at 1:46 pm Nick, do you do have a list of feeler gauges? I’m asking yourself Should the buffer tower is flexing sufficient to result in the buffer tube axis to now not be parallel into the BCG axis (similar to your principle, but https://diamondback-db15-ccmlb-540483.ivasdesign.com/56045244/getting-my-semi-auto-rifle-7-62x39mm-mil-spec-to-work