BSA Fill Probe O Rings x2
These are replacement fill probe O rings for the BSA R-10, Ultra, Scorpion, Goldstar, Hornet, Dynamax etc. Handy for when you are getting a puff of air from the the probe area when filling your rifle. It is also a good idea to keep some in your gun bag in case you develop a leak in the field.
Use a product like Abbey SM50 on the probe O rings to prolong their life.
They are black nitrile (rubber) O rings similar to the standard BSA version.
This is for 2 x O rings.
The picture is a generic picture of some O rings, not the actual O rings you are buying.