WW2 production Thompson 1928 Breech Bolt Oiler Assemblies (2 + 1) in the original wartime wrapping, 2 are wrapped and 1 is loose. They were designed for use with only the 1928 model to keep the ears of the H – Block (Blish Lock) lubricated as well as the sides of the bolt itself, this part was eliminated on the M1 and M1A1 models.
These breech oilers are in NOS un-issued condition with 1 being out of the wrapper to show what is inside, the ones inside are all grease covered and wrapped in the standard WW2 green wax paper.
