Product Description
This kit will work in ALL MK1, MK2, MK3 and MK4 (see notes below) Ruger Pistols (Very early MK1 may vary)
This would only be used as a replacement hammer for the full kit in a Mark IV
Does NOT work as a "stand alone" part in Mark IV
MKII Hammer Bushing manufactured by screw machine equipment. The hammer pivot pinhole has been drilled and reamed for improved precision to help eliminate variances that can be found in the factory bushing. Black oxide finish and hardened.