BSA Rearsight Assembly Pin Fitting.
Fits over block of metal on barrel & held on with a roll pin.
This spare fits the following models:
Airsporter Mk 5
Mercury Mk 1
BSA Rearsight Assembly Pin Fitting.
Fits over block of metal on barrel & held on with a roll pin.
This spare fits the following models:
Airsporter Mk 5
Mercury Mk 1
