05Sti...that could mean many things...if it menas you have a Brand New Subaru Impreza STi...then go buy an E2 frame for your gun..actually...buy all the bits you need from me...do you an E2 frame for about £250 (saving £100)...
All new.!
If not, try and get and E1 frame..around £100 secondhand...Nexus Ram and QEV's, a Delrin Bolt (Maybe a Slik Bolt and back block or full kit from me...very light, great for E-Cockers, and Mech cocker alike)
What do you intend to Play...Sup Air? Rec ball etc?
Do you have much money to spend?