It'll generally work, however, it depends on the body that the gripframe is being mounted to. Some of the older bodies weren't milled all the way through on the underside and it forces you to use a straight barb and not a 90 degree one. The other alternative, as you've discovered, is to use a firmer hose. The Assassin's frame, in particular, forces you to be VERY creative in terms of how you fit it. I like the frame with the Ironman body. It's a nice match!