Full o ring seal kit for servicing the Daystate MK3 air rifle.

Choose caliber from the drop down listing; .177 (4.5mm), .20 (5.0mm), .22 (5.5mm), .25 (6.0mm)

Please select FAC for the high power models (>12 ftlb) or Std for the standard power (12ftlb or lower) model.