Stirrup pump could be sold seperatly , but this wont affect the price of the gun , I was just offering the pump with the gun , just because.
The pump is faulty, it think it is the o rings on the valve, or the valve has an issue. Anyway its not a big problem, if you can be bothered to find the parts, you will be able to fit it quite easy.
Open to offers on the pump
Kind regards