MPA produces one of the most popular mounts in the PRS. Used by the best shooters in the country, our BA Mounts have hosted the optics of shooters winning multiple PRS, NRL and F-class  local and national championship matches.

The BA Series Mounts are made for mounting high performance optics onto bolt action rifles with Picatinny rail scope bases.

The mount is precision machined from 6061 T6 aluminum and finished in Mil-Spec anodize. Horizontal split rings. The interface ensures positive engagement for both in spec and out of spec rail systems. Absolute Return to Zero via multiple locking lugs located on the bottom of the rail interface.

FEATURES and BENEFITS

The MPA mounting system features the following advantages:

• 4 Accessory Mounting Locations on the left and right side of the mount body, in the front and back. The holes are on 20mm hole spacing, which works with other Unimount accessories.
• Extreme Bore Size consistency,  Roundness and Cylindricity with tolerances as low as 0.0002″
• Provides the ability to confidently move the optic/mount to multiple rifles with simple windage and elevation adjustments.
• Superior clamping surface to ensure maximum rail engagement.
• Lifetime warranty
• Rail to optic center is the size specified on the drop down menu.
• This mounting system is designed to handle large objectives up to 56mm.

This system provides over 3.5″ of rail interface providing extreme lockup on the host rifles scope base. Our NATO spec rail interface system pulls the mount onto the top of the pic rail, providing over 200% more rail contact than other competitive mounting systems that pinch the rail.

Specifications

• Diameter: 30mm
• Cant: 0 MOA
• Overall Length: 4.840″
• Overall Weight: 6.9 oz
• Open Gap between Rings: 2.700″
• Ring Width: 1.070″
• Ring Heights: 1.125
• Material Type: 6061 Aluminum
• Surface Coating: Black Anodized
• Top Cap Torque: 15-20 inch lbs
• Cross Bolt Torque: 60 inch lbs
• Accessory Thread Pitch – M5
• Accessory Hole Spacing – 20mm
• UPC: 635635945404

https://masterpiecearms.com/shop/mpa-ba-bolt-action-mount/