Set of classic torque gears R85 from SHS. Special gears intended only for type of weapons L85 (R85). From classic sets it differs by smaller center gear and piston gear with 19 teeth. Important parts are made by CNC from steel. The manufacturer states it is to be use on springs M125-M150. It is required to use a longer piston type SR25 with full teeth. Unbeatable price/performance ratio.