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Universal Sight Mounting FixtureDownload product-specific catalog information (accompanying PDF format)

Guarantees true spacing and alignment of scope mount, receiver sight and shotgun bead holes.

The Forster Universal Sight Mounting Fixture was designed to meet the exacting requirements of gunsmiths who drill and tap holes for the mounting of scope mounts, receiver sights and shotgun beads. It helps guarantee that both spacing and alignment are straight and true. The fixture will accommodate any single barrel long gun including bolt actions, lever actions and pump actions as long as the barrel can be laid into the ”V” blocks of the fixture. Tubular magazine guns can be drilled in the same manner as other firearms by simply removing the magazine tube.

  • Precision machining from solid aluminum casting ensures all components are perfectly aligned
  • Accommodates any single barrel long gun including bolt actions, lever actions, and pump actions, as long as the barrel can be laid into the fixture’s “V” blocks. The two hardened steel “V” blocks are accurately ground on the “V” as well as the shaft and are independently adjustable for height.
  • Movable fixture arm locates the holes to a standard spacing determined by the over-arm, which has standard, built-in spacing increments of .500″ and .860″ between centers.
  • Nonstandard spacing is also possible by sliding the over-arm in either direction. The over-arm is “keyed” and slides in a “T” slot. It’s always in true alignment with the exact center of the gun barrel.
  • Stop block provides infinite spacing.
  • Drill “runout” is minimized because the drill is guided in a hardened and ground drill bushing. When you’re ready to tap the hole, another bushing of the correct size is substituted for the drill bushing to help guide the tap straight and true. This prevents tap breakage.
Reid Coffield demonstrates Forster Products Gunsmith Sight Mounting Fixture at YouTube.com

Unless otherwise ordered, drill and tap bushings are furnished for 6-48 thread. Drill and tap bushings can also be supplied in 8-40, 10-32, and 3-56 thread sizes.

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