BSA tested this type of spring in the early 1900's. They were fited to BSA's up to WW2
Nothing new in airguning
Anyway, welcome to the BBS.
ATB
Ray.
BSA tested this type of spring in the early 1900's. They were fited to BSA's up to WW2
Nothing new in airguning
Anyway, welcome to the BBS.
ATB
Ray.