Firearm Maintenance: Ruger Mark I,II,III Lubrication – Part 3/4
This guide details the proper lubrication procedures for Ruger Mark I, II, and III pistols, as demonstrated by an expert from Brownells. It covers applying oil to the bolt, mainspring housing, trigger mechanism, and metal-to-metal contact points, emphasizing the use of a needle oiler for precision and warning against over-lubrication which can attract fouling and impede function.











