Paslode
Paslode MU-212F Bumper #16 Part 401129
Paslode MU-212F Finish Nailer Bumper or Piston Stop #16 on the schematic Paslode Part 401129. These are aftermarket parts made by me in the USA. Please Note: these will not work in any other nailer Paslode no longer makes parts for these guns.