If I recall correctly they recommend a 60 lb pull for the airow gun - I think you should be ok but just keep an eye out for that just in case. You also might need to cut down the shaft of the plunger, depending on your brand. I learned the hard way that the plunger can punch through the front if not cut properly.
There's another thread that tackles a lot of the problems other users have had -> Airow gun
. I would defiantly suggest checking it out if you haven't already.