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10-8 Glock Rear Sight .140

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10-8 Performance Glock Rear Sight .140


The 10-8 Performance rear sight is precision CNC machined from heat treated 4140 bar stock to better resist the nicking and denting that is typical with the wear and tear of daily carry. All 10-8 sights feature a U notch for rapid, intuitive alignment with dot such as on our tritium insert, brass bead, and fiber optic front sights. The rear face is serrated at 40 lpi to reduce glare in varied lighting conditions. The sight blade is thick enough to allow setting in tritium vials as dots or bars if one so chooses, but we recommend leaving them without inserts in order to draw the eye toward the front sight. The sight body is contoured and dehorned for comfortable handling and carry. All rear sights feature a plain black blade finished in black QPQ salt bath nitrocarburizing (aka Melonite, same as the Glock slide).

  • Fits: ALL Glock models, all calibers, all sizes
  • Notch widths: .140" U Notch
  • .140" - good balance of speed and accuracy
  • Compatible with .215" - .250" tall front sights
More Information
SKU 10-8:05-140
Manufacturer 108 Performance
Gas Length Mid
Rail Length 10"
Finish black
Mount KeyMod
Option AR15
Size X-Large
Profile Standard
Barrel Length 16"
Caliber 5.56
Configuration 5/8X24 Thread