For the newer Rossi 92’s with both front and rear dovetail mounted sights go here:
Steves Gunz Store
For the older InterArms imported Rossi’s like yours with the .400″ rear dovetails and barrel band front sights I can build this front and rear setup on your front barrel band and rear sight leaf.
For the front I offer 1/16” (.063), 3/32” (.095) and 1/8” (.125)
beads in brass or silver. (3/32” brass shown)