Beretta RDO mount for tactical shotguns, C-MORE pattern.
Please follow the following instructions for proper installation:
Remove existing picatinny rail, retain mounting screws
Clean and degrease threaded holes
Clean and degrease mounting screws
Align RDO plate on top of receiver
Apply thread locking compound to mounting screws (VC3 or or Loctite 242) and torque in to 15in#s
Apply witness mark to screw heads with a paint pen or marker for later reference
Mount optic with provided screw with threadlock patch to 12in#
Witness mark optic retention screw to track tightness while firing