No trades buyer pays shipping 10:1 siegeteks dsg gear set Btc spectre mk2 Retro arms gearbox Modify ceramics Lonex piston head Lonex cylinder head Lonex tappet Lonex a1 supreme motor Zci cylinder Shs piston and arl Sp160 spring Retro arms trigger Set up makes 65-70plus rps with the right battery Shimmed and aoe corrected