These bases are designed to mount any Malcolm short rifle telescope (including the Malcolm 6X Two Tone), Malcolm 8X and 20X scopes on rimfire rifles with an 11mm dovetail on the receiver and the 3/8” rear sight dovetail. This mounting kit is not compatible with the Malcolm 6X Long Rifle Telescope.
The front and rear bases have both Posa and Crescent cuts. Make sure that both the front and rear bases are oriented so that the desired cut is positioned on the same side when mounting your scope.
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