My own HD AR is a 16" carbine. I keep a 20rd mag of PRVI 75gn Match JHP.
I like that the PRVI is relatively affordable and available. Although my carbine has a 1/9" twist, I got good accuracy at 100yds, so I am not concerned with close range accuracy. I do have a spare 20rd mag of M193 handy.
The past is gone...the future may never happen.
Be Here Now.