A Very Quiet sub <12 ft/lb output-Drop-in tuning kit using our new730113 series spring technology fitting theTX200, ProSport & BAM40 air guns. This new, redesigned PG2 is assembled with matching damping guides align through its full range in use. Engineered quiet, shooting inside the 12< ft/lb and doing so with limited sticky lubrications. An extremely quiet output PG2 module thats easy to install with a soft shot cycle. PG2-TX200 damping kit includes, Vortek designed O-ring piston seal with spare ring, (x) 3 each-2mm spacers for fine tuning up to limit. Lubrication for PG2, seal and spring with instructions. Include top-hat may be fitted if needed. Product may be slightly different from picture shown.