A little word of caution if purchasing a venom kit. Check with Venom beforehand that the piston is suitable to receive the green powr-pulse piston seal. Otherwise you will simply receive a factory standard seal. BAR you do not distinguish this in their pricing. I found out when I bought a stage 1 kit from BAR for my webley longbow. In my case Venom kindly modified the piston head and fitted the powr-pulse seal. I have found the service from Chambers and Venom to be both excellent.