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Mark M. asked 8 years ago:
2 answers
This will fit all listed models Mike. 40107 and 40101 and 40107. No adapter is needed as Red Dot bases have a clasp lock that will have a hex screw or quick detach lever to secure to the rail.
James G.
8 years ago
Yes it will fit any of the MKi IV rugers and 22/45 rugers from the ruger site "Mark IV™, Mark III™, Mark II™ & 22/45™ - Weaver-style scope base adapter. Black anodized aluminum. DOES NOT FIT RUGER® SCOPE RINGS Genuine Ruger® Factory Accessory" No adapter is needed as Red Dot bases have a clasp lock that will have a hex screw or quick detach lever to secure to the rail.
Randy I.
8 years ago