Ruger 90655 Magazine Well Insert Assembly Ruger PC Carbine Compatible With Ruger American Pistol 9mm Magazines, Flush Fit, Black Polymer $22.94
Ruger 90653 Mag Well Insert Assembly 9mm Luger 40 S&W Fits Ruger PC Carbine, Compatible w/Ruger SR & Security-9 Mags Black Polymer $22.94
Ruger 90329 Scope Base Adapter Black Aluminum Fits Ruger 10/22 & 22 Charger Pistol Tip-Off/Weaver Mount $9.95