July 10th, 2021: We're back from vacation, and working hard to get everything shipped. Current lead time is about 4 business days.

Mossberg 500 / Remington 870 Scope Mount

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Murphy Precision


Picatinny style scope rail to fit Mossberg 500 and Remington 870 Shotguns.

Receiver must be drilled and tapped for scope mounting screws. Does not attach to barrel rib.

We hold our mounts to tighter tolerances than allowed under the Picatinny standard (MIL-STD-1913), ensuring complete compatibility with all Picatinny style, as well as Weaver style scope rings.

They are availible in a natural, satin silver finish (bead blasted), or with an incredibly tough black finish called GunKote.


Application:Mossberg 500 and Remington 870 Shotguns.

  • Weight:Stainless: __ oz, Titanium: __oz
  • Length: 5.500"
  • Front Height: .370"
  • Rear Height: .370"
  • Screw Size: #8-40

  • Hole Spacing (From Rear):
  • 1st to 2nd: 0.500"
  • 1st to 3rd: 2.625"
  • 1st to 4th: 3.125"

  • ** Each base ships with #8-40 alloy steel Torx screws, and a T15 Torx wrench.