Hey CB,
Make sure he put the recoil buffer back in. Take the forend off and you will see the recoil spring. Against the receiver there will be a recoil buffer sandwiched between two steel plates.
I just aquired a 1968 vintage BAR in 30-06, I took her apart for a good cleaning and inspection and found the recoil buffer was missing. I figured since this gun was 44 years old that a new recoil spring was in order along with the buffer.
I got the spring and buffer from Midway, the spring was about 5 bucks and the buffer was about 2.50.
I took the old BAR out yesterday with some friends and I ran about 90 rounds through it with no malfunctions and no bruises. There is no recoil pad on this gun just a plastic butt plate.
I now have total confidence in this gun for deer hunting.
GOOD SHOOTING!
Slufoot