This Winchester manufactured locking block assembly is for the model 1911 self loading shotgun and is in very good condition with light wear. This locking block assembly consists of the locking block with the locking block operating rod and pin. (file photo)

Note: Winchester model 1911 self loading shotguns with the following serial numbers have been observed with this part: A3849, A16342, A30460, A45726, A58132, A73696, A75734, A75753 and A76060