BSA Piston O Ring Part No. 162285

BSA Piston O Ring.

This spare fits the following models:

Airsporter Mk 5

Airsporter Mk 6 

Airsporter Mk 7

Airsporter Centenary

Airsporter Stutzen

Airsporter S Carbine

Airsporter S Mk 3

Buccaneer

Mercury Mk 1

Mercury Mk 2

Mercury Mk 3

Mercury Mk 4

Mercury S

Mercury Challenger

Mercury 365 Magnum

Scorpion