The Rimfire Report: 3D Printed Ruger Mark IV 22/45 Bolt Racker
By Luke C.
Welcome back to the Rimfire Report! This week we’re going to talk about a home-cooked modification for the Ruger Mk. IV. The Ruger Mark .22LR series of pistols have been a staple in the rimfire community since its introduction in 1949. Offering at first simple design, the series has gone through 9 iterations since then to […]
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Source:: The Firearm Blog