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Ultradyne C4 Front Sight Post Up to 24% Off — 4 models

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Ultradyne C4 Front Sight Post, 10 MOA, Black UD10620
Ultradyne C4 Front Sight Post, 10 MOA, Black, UD10620
Ultradyne C4 Front Sight Post, 14 MOA, Black, UD10640
Ultradyne C4 Front Sight Post, 8 MOA, Black, UD10610
Ultradyne C4 Front Sight Post, 12 MOA, Black, UD10630
1 of 2 videos
Ultradyne C4 Front Sight Post 8 MOA Black UD10610 Application Video
2 of 2 videos
Ultradyne C4 Front Sight Post 8 MOA Black UD10610 Application Video
Ultradyne C4 Front Sight Post, 10 MOA, Black UD10620
1 of 5 images
Ultradyne C4 Front Sight Post, 10 MOA, Black UD10620
Ultradyne C4 Front Sight Post, 10 MOA, Black, UD10620
2 of 5 images
Ultradyne C4 Front Sight Post, 10 MOA, Black, UD10620
Ultradyne C4 Front Sight Post, 14 MOA, Black, UD10640
3 of 5 images
Ultradyne C4 Front Sight Post, 14 MOA, Black, UD10640
Ultradyne C4 Front Sight Post, 8 MOA, Black, UD10610
4 of 5 images
Ultradyne C4 Front Sight Post, 8 MOA, Black, UD10610
Ultradyne C4 Front Sight Post, 12 MOA, Black, UD10630
5 of 5 images
Ultradyne C4 Front Sight Post, 12 MOA, Black, UD10630

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Questions & Answers
Will these fit an A2 front sight? Manufacturer Answer

The threads on the post are 8-36 (.164) UNF-2A threads. It should fit in most A2 front sights.

by Ultradyne USA, Manufacturer, October 9, 2025
Will these fit a standard troy front folding sight? Expert Answer

No, these are only compatible with the Ultradyne C4 front sight.

by Nick B., Gear Expert, September 2, 2021
View All Q&A You Have a Question? Ask!
Customer Reviews
Helpful Positive Review
Great concept for front sight by Andrew, Verified Owner, July 29, 2025
My eye and brain prefer circle-in-circle sighting systems as opposed to post in peep sighting. I bought this to modify and use with a standard front sight tower instead of the ultradyne ecosystem. Just a little bit of time with a file to open up the ...
Read More...
3/3 found this helpful
Helpful Positive Review
Well, it worked by EN, September 7, 2021
I got this item because it fit the niche i was going for, and i like how it functions. It DOES work with troy folding sights which i was pretty happy about and i think its totally worth it. You do have to fight with an alan key/punch and twist the si...
Read More...
8/9 found this helpful
Helpful Negative Review
Non-Standard Sight Adjustment by Slade, Verified Owner, January 14, 2021
The 2 standard front sight tools will not work on this and it doesnt come with a tool. The slots on the sight post are too small so you can fight it will a punch or allen key if you want. If you are able to work around it, be sure to get the largest ...
Read More...
10/12 found this helpful
Read All 3 Reviews

13% OFF Firearm Parts

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  • Ultradyne C4 Flip-Up Front/Rear Sight Set, Black, UD10480
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Help support American manufacturing! Marked models of this product have gone through rigorous review and been certified by the manufacturer as Made in the USA.

Product Info for Ultradyne C4 Front Sight Post

Additional aperture option or replacement front sight post for the C4 sighting system.image

Specifications for Ultradyne C4 Front Sight Post:

Manufacturer: Ultradyne
Sight Position: Front
Front Post Shape: Aperture
Front Sight Color: Black
Rear Sight Color: Front Sight Only
Fabric/Material: 4140 CrMo Steel
Country of Origin: USA
Finish: Nitride
Color: Black

Package Contents:

  • Ultradyne C4 Front Sight Post

Ultradyne C4 Front Sight Post Orderable Models

List of Orderable Models

  • Ultradyne C4 Front Sight Post, 10 MOA, Black, UD10620 , MPN: UD10620 , UPC: 851019008224 , Code: 3HE-ARI-C4SP-UD10620
  • Ultradyne C4 Front Sight Post, 14 MOA, Black, UD10640 , MPN: UD10640 , UPC: 851019008248 , Code: 3HE-ARI-C4SP-UD10640
  • Ultradyne C4 Front Sight Post, 8 MOA, Black, UD10610 , MPN: UD10610 , UPC: 851019008217 , Code: 3HE-ARI-C4SP-UD10610
  • Ultradyne C4 Front Sight Post, 12 MOA, Black, UD10630 , MPN: UD10630 , UPC: 851019008231 , Code: 3HE-ARI-C4SP-UD10630
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Last updated 2026-08-21 UTC.