Radian Weapons | Model 1 Builder Kit | 15.5″

Radian Weapons Model 1 Builder Kit is a receiver-level builder set presented in Radian Grey and listed with a 15.5 inch designation in the model name. The kit centers on a billet upper and an AX556 lower and includes a Raptor SD charging handle. It is intended for experienced builders assembling or upgrading AR-style rifles. Common applications include range-focused custom builds and precision-oriented component upgrades.

Product Specifications

• The product type is Accessory-Receiver Sets.
• The kit is listed with a 15.5 inch designation as shown in the model name.
• The finish is Radian Grey.
• The ATF type is Receiver.
• The ATF model is A-DAC 15.
• The ATF manufacturer is Radian.
• The kit includes a Raptor SD Charging Handle.
• The upper is a Billet Upper Receiver.
• The lower included is a Radian AX556 Lower Receiver.
• The finish type is Other Finish.
• The listed weight is 5.95.
• The width is 4.
• The package length is 11.5.
• The package height is 1.5.
• The UPC is 817093023874.

This builder kit delivers a concise set of receiver components and select accessories for those assembling a custom AR-style rifle. Its billet upper and AX556 lower provide a solid foundation for further parts selection, while the included Raptor SD charging handle offers enhanced ergonomics during assembly and maintenance. The Radian Grey finish gives a consistent aesthetic for builders who value clean visuals and component-level quality.