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Glock Rear Sight

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Product Description

The 10-8 Performance rear sight is precision CNC machined from heat treated 4140 bar stock and finished in black QPQ salt bath nitrocarburizing (aka Melonite, same as the Glock slide). 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 plain black, serrated at 40 lpi to reduce glare in varied lighting conditions.  

  • Fits: ALL Glock models, all calibers, all frame sizes, all slide sizes.  
    • most Glock models, including large frame 20/21 most commonly use the .215" front.  
    • Glock 34/35, 41, 17L, 24L most commonly uses the .235" front.  Sights do not overhang slide cutout.
    • Glock 42 is the only model with a unique slide, and our normal sights are a bit wide.  Stand by for updates.
  • Notch widths: .140" and .156" U Notch
    • .140" - good balance of speed and accuracy
    • .156" - good for maximum speed, preferred for older eyes 
  • Compatible with .215" - .250" tall front sights (see below for more info)
    • Rear sight is .250” net blade height above the slide
    • Use a notch width equal to or greater than front sight width
    • NOT compatible in elevation with the Glock OEM, Trijicon OEM style, TruDot, Meprolight, TruGlo TFO front sights as they are too low.
    • XS Standard Dot front sights are .200" tall.  Our .156" notch rear is recommended, but we do not guarantee POA/POI due to the short height.
    • Trijicon HD, GL101 Series front sight is .215" tall x .144" wide.  Our .156" notch rear is compatible.

User installation instructions included.

Please contact us for a discounted price on additional front sights if your initial purchase does not provide the desired point of impact.


Read our article about selecting sights.

Product Videos

Fiber Optic Install ()
  • Glock Sight In...
    10-8 Performance Glock Sight Installation
  • Fiber Optic In...

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Product Reviews

Showing reviews 1-10 of 53 | Next

  1. The Champagne of Sights

    Posted by Rachel Kreps on 16th Jul 2014


  2. 10-8 sights for Glock are all you need.

    Posted by jtbriggsnm@gmail.com on 5th May 2014

    Having become tired of the fragility of fiber front sights and wanting a durable combat sight that is easy to pick up I opted for the 10-8 .140 u-notch rear with a brass bead front. This gives me the simplicity of iron sights with a high contrast dot that will not break or fall out. The finish and shape of these sights make them very snag resistant and durable and the flat area on the front of the rear sight allows for one handed slingshot reloading on the heel of my boot or on a sturdy belt.
    Excellent fit and superb all around design. Am in the process of replacing the sights on all of my guns to this setup.

  3. The Best Sights for a Combat Pistol

    Posted by Murphy. Iron Frog Pistolcraft on 14th Mar 2014

    What a great idea.....open up that rear notch, more light to actually see my front sight clearly. I've been doing this a long time....shooting and training folks to shoot pistols defensively. This is the most effective advance in pistol sights I've ever used.

  4. Great speed!

    Posted by William Hinegardner on 3rd Mar 2014

    I used a .156" U Rear in conjunction with a .215" tritium front sight. They were mounted on a Glock 19. I took a 2 day "Fast and Accurate" class, and the set up was perfect. I brought my back-up gun (Glock 19 with XS Big Dots) Just in case, but I never took it out of the box. The 10-8 sight setup was just awesome.

  5. The good stuff

    Posted by Unknown on 3rd Mar 2014

    I have both the big rear sight and the small

    Go with the small it's fast for 3 gun

  6. Great Sight - Good Luck on your Dove tail

    Posted by Unknown on 19th Feb 2014

    The sight on Gen 4 Glock will fit 1/3 of the way in Dovetial. The video makes one think that using a standard file will adjust the dovetail to make the fit better - WRONG! You can fiule til the cows come home with the hardened steel of the 10-8 sight. Recommend a diamond file. Otherwise you will have to hammer it with a plastic hammer - makes to difficult centering. Get a diamond file, folks, standard file on that is worthless. Once on with fiber front - it is an awsome sight. A great sight picture - far better than stock. Excellant sight. Video for the file job is poor.

  7. 10-8 Rear Sights are the Best

    Posted by Chris on 28th Jan 2014

    I've installed a 10-8 Rear Sight on all of my Handguns. I love the U-Notch rear sight and prefer the serrated rear over the plain rear. If you are one of those guys who wants to be able to rack the slide using one hand these sights can do the job. I a .140 Rear w/ a .115 Front on my Gen 4 G34/G35. Installation was a breeze. The .140 Rear to .115 Front gave me a close 1:2:1 for sight picture to the width of the front sight.

  8. Glock Perfection Perfected

    Posted by 309Tactical on 26th Jan 2014

    Glock 30 with the.156 U notch rear and the .125 fiber front.

  9. can't get any better

    Posted by john on 15th Jan 2014

    this is my second purchase of the glock rear sight. I like the forward slant it has on the sight with the serrations. I hate sights that are flat in the rear. Only mistake I saw is on some of the lines of the serrations paint was marred. I don't mind too much. I coupled it with the ameriglo idot front sight .220 height and works perfectly. Will buy again.

  10. Glock 30 Rear Sight

    Posted by Brad Adams on 4th Jan 2014

    I ordered the Brass Bead front and the Glock rear sight. Installation was simple, a couple of strokes with the file and I was able to tap the sight in just like in the video. I have the MGW Sight pusher for Glocks but it's the sloped version and the 10-8 sights require the straight version. No problem at all, hammer and nylon tipped punch and the job was finished. I love these sights, paired with the Brass Bead fronts, quick acquisition and they look great. Fast delivery, nice product. I'll be back for more.

Showing reviews 1-10 of 53 | Next

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