Pump recommendations for Benjamin Armada

Go to Aliexpress and pick a 50 bucks three stage pump and you are set. When it got old then consider picking up a 4500 psi compressor such as a Yongheng. 

I would recommend this pump or any other hill pump. Re-seal kits are easy to pick up. Also do not over work any hand pump. Take it slow to keep it from getting too hot and you’ll prolong the life of the seals considerably. Same goes with any hand pump. 

Also the Benjamin hand pump should have had the correct fitting for your armada. Not sure how much experience you have , but are you sure you were pulling the collar up on the fitting before attaching it to the fitting? 
I only ask because I’ve never seen a Benjamin pump with anything other than the standard Quick disconnect fitting.