The only thing I could find was in 2004 the MK3 came with the optional Bull Barrel. Other than that I could not find anything else.
The BSA C15T was produced as an offroad model. To allow for offroad use, the C15T had a higher clearance with extra reinforcements, different gear ratios and a higher exhaust pipe when compared with the BSA C15G.
I paid 2,000 for my 1961 DY BSA bantam Super with 3300 miles and it is in 90% or better condition.
The Ten MK3 comes with a rifled standard or Bull barrel. is the only difference. Everything else appears to be the same.
The barrel on a BSA Super Ten rifle is fit into place by screwing it into the receiver. It is tightened down until it fits snugly and then torqued to specifications to prevent movement.
BSA cadets were made between 1946-1959
The BSA Mercury was made between 1972-1980
Around 27,480 BSA Rocket 3 motorcycles were produced between 1968 and 1972.
The BSA B50 is listed as having a maximum speed of 85-90 miles per hour. The BSA B50 is a motorcycle with manufactured models primarily between the years of 1971 and 1973.
The BSA Lightning is a type of motorcycle designed for use as an all-round sportsbike. The motorcycle was manufactured between the years 1965 and 1972.
In 1965, the cost of a new BSA Super Rocket motorcycle was approximately £370. This price reflected the motorcycle's features and performance, making it a popular choice among riders during that era. Adjusted for inflation, this cost would be significantly higher in today's currency.
This model BSA (UK) was made between 1948 -1959. It came in both .177 or .22 cal
It was made between 1948 - 1959. That's all the information I have. You could try the link below for BSA.