During development every model in the BSA spring gun range is put through a punishing and prolonged firing test to ensure a lifetime of trouble free use. At the end of the test the gun is subjected to an exacting visual and technical inspection to evaluate the effect of prolonged firing, only if it passes will it be deemed worthy of bearing the BSA name and world famous Piled Arms logo. Which is why when you buy a BSA you know you have a gun which will keep on doing what it was designed to do, again and again and again.