Most of the issues are optical parallax and optical illusion, as the wood handguard is not even on both sides and the cut-out of the top cover make it "seem" like they are out of alignment. If you strip off all the wood and the top cover/bolt, put stand-off blocks on the receiver and measure a flat edge 99.99% of the time it's perfectly straight. Out of all the shipments we received thus far, there were only two cases where the deviation exceeded 5mm/0.19". We shipped over 500 rifles without issue until the "bent t81" thread, then everyone thinks they have a bent T81...