Weaver Mounts 48447 Top Mount Base 63BS Silver Marlin 36/336/Mossberg 640 Range Finders The 17 HMR laser bore

The 17 HMR laser bore sight is designed to make it quick and easy to bore sight your rifle and comes with an external battery box

Use the outstretched head for more aggressive setups

preventing interference from wind

Packed with features including a highly visible and efficient Viridian green 3 MOA dot

Weaver Mounts 48447 Top Mount Base 63BS Silver Marlin 36/336/Mossberg 640 Range Finders The 17 HMR laser boreEach Weaver base is machined to tight tolerances for a custom fit. These aluminum bases offer maximum strength for rings to hold tight. This base offers the rock solid Weaver cross lock design to fit a variety of rings.