I was just curious - back in the day - when the USAF bases did not necessarily have ranges to shoot the M-16 they had a conversion kit to make it shoot 22 LR. I was pretty sure all they changed was the magazines and the BCG.
Could you easily take an MP 15-22 and by adding an upper assembly with the appropriate BCG, mag, and barrel if necessary make it into a rifle capable of shooting 5.56?
Could you easily take an MP 15-22 and by adding an upper assembly with the appropriate BCG, mag, and barrel if necessary make it into a rifle capable of shooting 5.56?