COS Work 3d printed moderator. The MK22/30 moderator is printed in PLA+. It is threaded for 1/2x20 unf and bore sized for .177/.22cal (MK22), .25/.30cal (MK30).
Note- The Gen1 MK22 has the same internal design as the Gen2 version. The only difference is cosmetic wise (Gen1 doesn’t have the MK logo like the Gen2)
