Ruger Mark IV ModMount Base

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This base adapts the standard three-hole Ruger Mark IV receiver to the Armadyne ModMount oval interface. Pair it with any ModMount optic-side mount; optional spacers can raise the optic or provide additional installation clearance.The base, optic-side mount, and any spacer are fully interchangeable within the ModMount system. Optic-side mounts and spacers are sold separately unless specifically included. Show more