Product highlights:
- Machined to tight tolerances for a custom fit
- Aluminum base offers maximum strength
- Strengthens rings to hold tight
- Offers rock-solid Weaver cross-lock
- Design fits a variety of rings
Weaver Top Mount Base for Marlin 36/336 Mossberg 640 (63BS Silver)
Each Weaver base is machined to tight tolerances for a custom fit. This aluminum base offers maximum strength for rings to hold tight. It offers the rock-solid Weaver cross-lock design to fit a variety of rings.
Ratings and reviews
Weaver Top Mount Base for Marlin 36/336 Mossberg 640 (63BS Silver) 

Weaver Top Mount Base for Marlin 36/336 Mossberg 640 (63BS Silver)
SKU: 48447