1919A4 Build Tutorial 4
   Reassemble the receiver and install all the rivets, they should fit easily
and flush with the surfaces. Correct any problems before proceeding.
   Insert the bucking bar in the bottom of the receiver, and install the top
cover. Check the fit of the back plate, if all fits properly clamp up the receiver
for riveting.
    I used a rivet gun to start the rivets then used a dimpled steel plate in
the press to finish them. It produced nice domed rivets with no marks from
the rivet gun.