Weaver - Top Mount Base Browning MDL 52/ 52C/A-Bolt, 85 Black, Item#48085

Fits:
Browning 52, 52C and European model A-Bolt (front or rear)
Colt Sharps (front or rear)
Parker-Hale 2600 (front)
Ruger 1 and 3 (rear)
Sako 72, 75 and 78 (front or rear)
Winchester 520 (front or rear)

Includes custom-hardened fastening screws for mounting

Browning front base screws must be shortened by grinding
Ruger 1 requires shimming, drilling and tapping and front base may need modification  

Requires an additional base

• This is a 1-piece base for a 2-piece system.