Leupold Mark 4 Riflescope Mounting Bases (8-40 Adaptable)

Leupold Mark 4 Riflescope Mounting Bases (8-40 Adaptable) Details

Mark 4 8-40 Adaptable Mount

Mounting large riflescopes on large caliber firearms with conventional 6-48 screws is not ideal, as the increased recoil and scope weight can over-stress screws and lead to possible failures. More rugged, 8-40 screws increase mount strength by 41%.

Leupold's Mark 4 8-40 Adaptable Mount is the first mount that can accommodate both the 8-40 screw and a modified 6-48 shoulder screw. Larger through holes accept the thicker 8-40 screw, while the standard 6-48 screw has been replaced by a shoulder screw to work with the larger opening. This gives you the flexibility to mount your rifle with the common 6-48 screw size, or drill and tap your gun to accept the 8-40 screws.

These bases will fit Winchester PBR, Remington Super Magnum, HS Precision, and other 8-40 rifles without modification (some firearms will not work with these adaptable mounts - check current offerings for details).

Finish Matte Black
Mount Configuration 1-Piece Mount, 2-Piece Mount
Firearm Fit Remington 700, Remington 700 LA/Super Mag Long Range, Remington 700 SA, Savage 10/110 Round Receiver, Winchester 70, Winchester 70 LA Long Range, Winchester 70 SA Long Range
Material Steel

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Leupold Mark 4 Remington 700 LA/Super Mag Long Range 1-Piece Riflescope Base #65970

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Leupold Mark 4 Winchester 70 SA Long Range 1-Piece Riflescope Base #59255

Leupold Mark 4 Winchester 70 SA Long Range 1-Piece Riflescope Base #59255

  • Model Number: 59255
  • UPC: 30317592554
  • Finish: Matte Black
  • Mount Configuration: 1-Piece Mount
  • Firearm Fit: Winchester 70 SA Long Range
  • Material: Steel
$134.99
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Leupold Mark 4 Savage 10/110 Round Receiver 2-Piece Riflescope Base #59245

Leupold Mark 4 Savage 10/110 Round Receiver 2-Piece Riflescope Base #59245

  • Model Number: 59245
  • UPC: 30317592455
  • Finish: Matte Black
  • Mount Configuration: 2-Piece Mount
  • Firearm Fit: Savage 10/110 Round Receiver
  • Material: Steel
$134.99
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Leupold Mark 4 Remington 700 2-Piece Riflescope Base #59230

Leupold Mark 4 Remington 700 2-Piece Riflescope Base #59230

  • Model Number: 59230
  • UPC: 30317592301
  • Finish: Matte Black
  • Mount Configuration: 2-Piece Mount
  • Firearm Fit: Remington 700
  • Material: Steel
$134.99
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Leupold Mark 4 Winchester 70 2-Piece Riflescope Base #59240

Leupold Mark 4 Winchester 70 2-Piece Riflescope Base #59240

  • Model Number: 59240
  • UPC: 30317592400
  • Finish: Matte Black
  • Mount Configuration: 2-Piece Mount
  • Firearm Fit: Winchester 70
  • Material: Steel
$134.99
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Leupold Mark 4 Remington 700 LA/Super Mag Long Range 1-Piece Riflescope Base #65970

Leupold Mark 4 Remington 700 LA/Super Mag Long Range 1-Piece Riflescope Base #65970

  • Model Number: 65970
  • UPC: 30317659707
  • Finish: Matte Black
  • Mount Configuration: 1-Piece Mount
  • Firearm Fit: Remington 700 LA/Super Mag Long Range
  • Material: Steel
$134.99
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Leupold Mark 4 Winchester 70 LA Long Range 1-Piece Riflescope Base #59250

Leupold Mark 4 Winchester 70 LA Long Range 1-Piece Riflescope Base #59250

  • Model Number: 59250
  • UPC: 30317592509
  • Finish: Matte Black
  • Mount Configuration: 1-Piece Mount
  • Firearm Fit: Winchester 70 LA Long Range
  • Material: Steel
$134.99
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Leupold Mark 4 Remington 700 SA 1-Piece Riflescope Base #59235

Leupold Mark 4 Remington 700 SA 1-Piece Riflescope Base #59235

  • Model Number: 59235
  • UPC: 30317592356
  • Finish: Matte Black
  • Mount Configuration: 1-Piece Mount
  • Firearm Fit: Remington 700 SA
  • Material: Steel
$134.99
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