When you want your rifle to be as accurate as possible, you need to have a solid mount. The Leupold Mark 4 8-40 Adaptive Mount is a solid mount you can trust. No matter what the venue Leupold has the right Scope, Base, Rings and accessories to help you get more hits on target quicker, faster, and more accurately than any other optics company. The larger through holes accept the thicker 8-40 screw, while the standard 6-48 screw has been replaced by the shoulder screw to work with the larger opening. This mount gives you the flexibility to mount on rifles with common 6-48 screw size, or drill and tap gun to accept the 8-40 screws.
Specifications and Features:
Leupold Mark 4 8-40 Adaptive Mount 171500
Designed to accommodate both the 8-40 screw and modified 6-48 shoulder screw
8-40 screws increase mount strength by 41%
20 MOA long-range shooter version
Weatherby Vanguard/Weatherby Mark V Long Action Caliber Rifles