I bought my 15-22 sport on the 15th, box shows 29MAR17 as date of manufacture with a serial number of DEP82XX. I have put 200 rounds of Federal Automatch thru it. Have had 5 FTF's, 2 I am sure were due to improper stacking in the mag, the others I am unsure of as I double checked the rounds for being staggered. Had 1 FTE today, took about 5 pulls on the charging handle to get it out.
The Magpul flipup sights have been accurate out of the box from 50 yards to 20 feet.