Base Fitting: Weaver (Picatinny - RIS) style rails 20mm wide.
Tube Size: To fit 1" (25.4mm) diameter body tube scopes.
Front Lens Size: Up to 45mm - This figure describes the maximum size of the objective (front) lens the mount is designed for when the dovetails are flush with the barrel. Please bear in mind scopes with front PX adjustment will often need higher mounts.
Common Questions
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![Nikko Stirling 2 Piece Scope Mounts 1"[Medium] Weaver Picatinny RIS Rail [NMWM]](https://m.media-amazon.com/images/I/515vTVwqbtL.jpg)
