FABTECH FTSBK4 4" Rear Block Kit

Vintage Mossberg No.4 Rear Peep Sight. No Mounting Screws

FTSBK1 1" Rear Block Kit

Front & Rear Sight for No. 4 MK1 Rifle 'F' & “R” Stamped (See Photos)

Original MAINSPRING for Remington Rolling Block Rifle Model 4 (D354)

Remington #1 sporting model rolling block Screw Set for antique rifle new mfg

Remington 4 Rolling Block and model 12 rifle original rear sight assembly