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Ultradyne
Overview
The Ultradyne USA C4 Offset Folding Front Sight is a durable steel sight designed for versatility and convenience in your AR-15 setup. Its folding and offset style allows for quick deployment and easy transition between sights, making it ideal for dynamic shooting scenarios. This sight is commonly found in builds featuring a mid-length gas system and chambered in 5.56 NATO, providing an effective balance of performance and reliability for various applications.
Prices checked
Ultradyne USA C4 Offset Folding Front Sight was the eighth most added front sight on GunPartPicker in October 2026. Builders have been adding it to their builds on GunPartPicker since February 2026. All time, it is the seventh most added front sight on the site. Builds with this front sight are mostly chambered in 5.56 NATO (68%, then .223 Wylde 13%), split between mid-length (46%) and carbine-length (37%) gas systems, and mostly AR-15 (91%).
It was in stock most days in October 2026, but today only Ammunition Depot has it in stock. The best price crept up from $73.29 to $115.99 over October 2026. Buying today, the lowest price is $115.99 at Ammunition Depot, above October's low of $73.29, so a better deal may come back.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 37 retailers
We ranked every front sight by how often it shows up in real builds on GunPartPicker.
Read the guide: AR-15 Front Sight Guide →The part most often added in each category by hundreds of builds that include this one

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Aggregated and anonymized data showing how builders use this product
Builds in the community that include the Ultradyne Usa C4 Offset Folding Front Sight
| Build | Parts | Total |
|---|---|---|
![]() | 10 | $3877.42 |
![]() | 24 | $6914.05 |
![]() | 27 | $2276.28 |
![]() | 33 | $2994.52 |
![]() | 25 | $4668.65 |
![]() | 26 | $2069.72 |
![]() | 33 | $3164.55 |
![]() | 28 | $1112.38 |
![]() | 33 | $2994.52 |
![]() | 24 | $3471.58 |
![]() | 18 | $4642.32 |
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