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Glock Front Sight

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  • Some Glock slides are thinner at the front sight hole, and the sight's mounting post may protrude.  This causes the set screw to tighten against the sight instead of the slide.  To correct this, file some material off the bottom of the post (indicated in silver) so that the post sits below flush.
Calculated at checkout

Product Description

All of our front sights feature 40lpi serrations to provide crisp visual focus and glare reduction.  Finished in black QPQ salt bath nitrocarburizing (aka Melonite, same as the Glock slide).

  • Available in:
    • Tritium insert, .075" green with silver vial, no white outline
    • Brass bead insert, .075" with polished domed face (DISCONTINUED UNTIL FURTHER NOTICE)
    • Fiber optic (.060" rod with .075" diameter on blade face).  Fiber optic comes with 1 each red and green fiber rods.
  • Fits: ALL Glock models, all calibers, all frame sizes, all slide sizes, except 42/43. 
    • NOT FOR THE Glock 42/43, which is the only model with a unique slide, and we have specific sights for them. 
    • Compatible with .250" blade height rear sights.  NOT compatible with Glock factory rear sights, fixed or adjustable as they are shorter than .250" blade height.
  • Height: .215", .235" and .250"
    • 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.
    • The .235" front lowers impact approximately 2-3" at 25 yards relative to the .215" front.
    • The .250" front lowers impact approximately 3-5" at 25 yards relative to the .215" front.
    • Please note that different guns will vary in regards to point of impact, especially with differing shooter preference. These heights are recommendations, and we cannot guarantee point of impact due to variations in individual guns.
  • Width: .125", .115", and .100"
    • Blade width is strictly personal preference.  Thinner fronts cover less of the target area and are preferred for speed.  Thicker blades like the .125" are preferred for improved accuracy and are our most popular.

All sights include set screw.

**Our front sight posts are made to maximum dimensions for a tight fit in your slide.  However, due to extremely wide variation in the mounting holes in the Glock slides, our posts are sometimes oversized.  If a gentle tap with a nonmarring hammer does not seat the sight, file just a little off the outside with a diamond hone and try again.  


Read our article about sight selection.


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

Product Videos

Glock Sight Install (04:24)
10-8 Performance Glock Sight Installation
  • Glock Sight In...
    10-8 Performance Glock Sight Installation
  • Fiber Optic In...

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Product Reviews

Showing reviews 1-10 of 76 | Next

  1. Great sites and easy to pick up fast. 5 Star Review

    Posted by on 20th May 2016

    As my eyes get a little older the three dot system was getting a little busy while doing training. I like the tritium front and blacked out rear. I will say that 10-8 really makes a solid point if you have a light on your gun. It makes night sites fairly useless. I keep the front just in case I have a flashlight failure. Also after years in LE I have really yet to see a time when there was not some form of lighting where ever you are.

  2. The Best there is 5 Star Review

    Posted by on 16th May 2016

    Another happy 309Tactical customer.

  3. Best Fiber Optic Front Sight 5 Star Review

    Posted by on 18th Feb 2016

    The 10-8 fiber optic sight for my Glock is well made and easy to install in under 10 minutes. The kit contains everything needed including both red and green FO tubes, hex wrench and red locktite. The sight picture is vastly improved with the bright tube. Outstanding product.

  4. Fiber Optics fronts 5 Star Review

    Posted by on 21st Jan 2016

    Easy installation. Quality product. Precise and accurate. Worth every penny. Should of bought these day one. High recommended.

  5. 309Tactical supports 10-8! 5 Star Review

    Posted by on 9th Jan 2016

    Just another 10-8 sight for the shop.

  6. 10-8 Glock Sights 5 Star Review

    Posted by on 21st Sep 2015

    great product!!!

  7. Great Sights! 5 Star Review

    Posted by on 8th Jul 2015

    I installed a .140" 10-8 U Notch Rear sight and a .125w x .250h front sight on my Glock 35. The point of impact is dead on from point blank out to 25 yards. The sights allowed me to shrink my groups and quickly achieve a sharp clear sight picture. The fiber optic is bright and we'll protected by the sight design. Great product that I will recommend to others.

  8. Great crisp sight picture 5 Star Review

    Posted by on 15th Jun 2015

    Love the tritium front sight! No distracting white outline and has serrations that reduce glare. I originally ordered the .215 height for my G17 but it shot 3-4in. high. Thankfully 10-8 offers a discount to purchase a second sight to get your desired POA/POI. Ordered the .235 and brought the POI down just where I needed it. These are the most accurate sights I own and I swear by them. Now go 10-8!

  9. Nice and bright 5 Star Review

    Posted by on 13th Jun 2015

    This is my second 10-8 fiber optic front sight to buy. I have one on my Glock 34 and just put one on my Glock 17. I am very happy with this front sight and any new guns I get will be getting one as well.

  10. best quality and product design around 5 Star Review

    Posted by on 29th May 2015

    By far the best competition sights I have used on my g34! .100 thick front with the narrow rear has drastically improved my accuracy and their recomended height is a perfect poi/poa from my gen 4 g34

Showing reviews 1-10 of 76 | Next

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