take it from me [bANNED TEXT] if you dont have a f.a.c and you do mess with it i hope that you can repair yourself as i bought a webley axsor that was f.a.c it broke and webley are not good with that cost me £225 for an exhaust valve because they was not giving my gun back till it was at the legal limit so be very careful other thanthat dont get caught with it i have a tuning guide for a raider will sort it out and let you have a look if you like