This jig will install the five trigger guard rivets. The
front four rivets can be set at once and the rear will be done
separately. There is a magnet that holds the rear rivet support to keep
it from falling off.
The rear support block is removable to work with receiver flats that
have the front four trigger guard holes in the wrong place as well as my
flats and Nodak receivers that have the correct spacing. Removing the
block also gives clearance when installing the rear rivet of the trigger
guard that goes through the reinforcement plate.
The square block that sets the front rivets is made of heat treated
steel and may need to be ground to fit receivers that have the bump on
the right side rail.