Heads up for those who want one. This is the fixed-base (AK) version. Get it while you can. These have been out of stock for a LONG time.
https://www.primaryarms.com/Primary_Arms_Micro_Dot_With_Fixed_Base_p/md-07.htm
https://www.primaryarms.com/Primary_Arms_Micro_Dot_With_Fixed_Base_p/md-07.htm