Radian Weapons R0903 Model 1 Complete Upper 6mmARC Black Nitride Steel
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Overview
The Radian Weapons R0903 Model 1 Complete Upper is designed specifically for the 6mm ARC caliber, providing builders with a complete assembly that integrates seamlessly with the AR-15 platform. This upper receiver features a black finish, ensuring a sleek and functional appearance while maintaining durability. It's particularly suited for builds focused on the 6mm ARC caliber, making it an excellent choice for those looking to optimize performance for precision shooting or hunting applications.
Specifications
Radian Weapons R0903 Model 1 Complete Upper 6mmARC Black Nitride Steel
Available Merchants(4)
Prices checked
Price Alert
October 2026 on GunPartPicker
Radian Weapons R0903 Model 1 Complete Upper 6mmARC Black Nitride Steel ranked #360 of the 844 upper receivers builders added on GunPartPicker in October 2026. Builders have added it to their builds on GunPartPicker. Since April 2026, it ranks #545 of the 2,052 upper receivers builders have added.
Availability is good: it was in stock at one retailer or another nearly every time we checked in October 2026, and today 2 of the 4 retailers we track have it in stock. Buying today, the lowest price is $2,169.95 at Optics Planet, which matches the best price we saw in October.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 37 retailers
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Frequently Built With
The part most often added in each category by the builds that include this one
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Radian Weapons Raptor-SD Ambidextrous AR-10/SR-25 Charging Handle, Black - R0012
Geissele Automatics AR-15 Premium Buffer Tube Ddc
Build Configuration Breakdown
Aggregated and anonymized data showing how builders use this product
Gas SystemBased on real build data showing which gas system lengths builders use with this product.
Builds Featuring This Part
See all builds →Builds in the community that include the Radian Weapons R0903 Model 1 Complete Upper 6mmARC Black Nitride Steel
| Build | Parts | Total |
|---|---|---|
 | 6 | $3850.88 |
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