I currently have a G&P Spec Ops and it has got alright range and accuracy but I would like it to be better. The first thing I want to buy is a Firefly Bucking/Hop UP Packin because there is some amazing reviews for the price, has anyone got experience with this item? The inner barrel of the gun is 292mm long, I haven't seen a tightbore barrel of this, has anyone got recommendations of what I can change this to?