The Airsporter was first sold in 1948 as the MkI; it wasn't until 1959 that the MkII came out with the addition of two short wide scope rails. Both of these models were the only ones to have the loading tap open automatically when the rifle was cocked, after that the quality slowly started dropping off on the later Mk's. Mk I BSA Airsporter, bloody sexy.

Very rare, 1st series,one of the first ever made, 1950-1954 BSA club airsporter,22 calibre underlever EA prefix serial number with 1946 patent no. 607045 for piston head, serial number G30715!!! Mk1, only 14500 ever made and this has the G serial number so is one of the first!!! Not many around now, perfect for a collector/ gun enthusiast. Jun 03, 2014  the other issue is that there are absolutely no identification marks on the gun whatsoever-not bsa,airsporter,not even a serial number.i even took the action out of the stock but there's nothing. Has anybody got any ideas as it's really puzzling me. I would post.

The Airsporter is a tap loading underlever spring piston air rifle, and the awesome thing about the underlever part is that it is hidden from view in the underside of the stock, making it look like a sporting firearm rifle. The BSA Mercury is a break barrel that is identical in looks, but was not introduced until the MkI in 1971, by which time the Airsporter was at it's MkV stage.

Even the old BSA Cadet has similar looks, though is a totally different design. Kak snyatj radiator pechki na mersedes vito 638. They all have the smooth swept back look from the rear of the piston cylinder to the comb of the stock, instead of a step.22 BSA Mercury with scope,.22 BSA Airsporter and a.177 BSA Cadet, sharing a common heritage. The big thing to remember about old BSA air rifles is that the bore of the.22 was actually 5.6 mm and not 5.5 mm, so they tend to be very pellet fussy when looking for both power and accuracy. Old Eley Wasps worked well but not the new ones, however RWS Superdomes tend to fare well in my experience. The front sight has four interchangeable elements of different heights with a bead on top.

The sight element is secured with a small screw from the left hand side. This sits atop a sloped ramp with a hood around it, though in this case there is no hood and just one of the taller elements.

Beaded sight elements come in low, standard, medium and high and are secured with a small screw. The rear sight is of a leaf or butterfly design that flips up and down and sits in a dovetail in a sleeve around the barrel, just in front of the loading port. The unit is drifted in the dovetail for horizontal sight correction. Rear leaf sights using the V notch at the moment.

A small notched plate secured by two small screws sits between the leaves and has a small amount of vertical adjustment, it can also be fitted upside down giving you the choice of a V or U notch to sight with. The other option is to fit a scope, which can be done. The piston cylinder has two sets of short scope rails each set 13mm wide, this means a scope will be a little off centre with modern mounts but adapters or special mounts can be bought. Early, rudimenary scope rails, better than nothing but still a bitch to fit modern mounts on. To cock the rifle you have to pull down the spring loaded catch at the end of the cocking arm at the front of the fore stock, Sturdy spring loaded catch holding the underlever arm flush to the fore stock.