How To Install a PB-3 (or Aimpoint Acro) on a Glock MOS

A quick how to install a lead and steel PB-3 onto a Glock 19 MOS using a Forward Controls Design MOS adapter plate. The PB-3 uses the same footprint as the Aimpoint acro so it would be a similar install process for that as well.

[@MoJohnson58]

Any idea what clamp screw the Pb3 uses?