HENRY PICATINNY ADAPTER 3/8 TO 1

Henry Repeating Arms H001/2/3 Series, 1 Piece Base, Fits 3/8 Dovetail Mount, Matte Finish, Black, Picatinny Adapter HLPA001
The receivers on the H001, H002, and H003 series rifles feature a 3/8-inch dovetail along the top of the receiver. You can use the HLPA001 Picatinny adapter to convert the 3/8-inch groove to 1-inch slots if you want to mount a red dot optic, or Weaver/Picatinny rings for a scope.