i asked this over in ar discussions, but could not get positive id, thought i would ask the experts in here. i obtained a semi-auto cut, parked finish bca, bolt has "mpi" on one side and "z" on the other. The carrier body has a perfect little "*" asterisk stamped in the normal left side position. correct staking looks quality jigged and maybe a little over done. over all very nice machine work. can anyone help id? is this bca good to go? any response greatly appreciated.

Not sure of the make and if your just trying to see if its a good working bolt the only true way is put it in and frie 2500+ rounds with it.  Most Ive seen if its staked good the its going to be a quality item and with the recent non avaibility of AR parts these in hand moves it up a notch PS a pic would help