Radian Weapons | Model 1 Upper 15.5″ M-LOK FDE | R0620

The Radian Model 1 upper and 15.5″ M-LOK handguard set is a billet AR-15 upper assembly intended for builders and integrators who want a high-quality interface for custom rifle builds. It pairs a billet upper receiver with a free-floating 15.5″ M-LOK handguard and includes common accessory hardware to simplify installation. This assembly does not include a barrel or bolt carrier group and is supplied with essential components such as a dust cover, forward assist, and a Radian Raptor SD charging handle.

Applications: precision target and tactical-style range shooting, and custom build projects where a robust, modular handguard interface is required.

Product Specifications

• The manufacturer is Radian Weapons.
• The model is listed as Model 1.
• The manufacturer’s part number is R0620.
• The UPC is 817093026004.
• The product includes a 15.5″ M-LOK handguard.
• The upper type is described as a billet upper with M-LOK handguard.
• The construction material is aluminum.
• The set includes a dust cover and forward assist.
• The set includes a Radian Raptor SD charging handle.
• The set includes barrel nut and installation hardware.
• The listing explicitly states it does not include a barrel.
• The listing explicitly states it does not include a bolt carrier group.
• The assembled package dimensions are listed as 4.75 x 5.40 x 33.45 inches.
• The listed height is 4.7500 inches, width is 5.4000 inches, and length is 33.4500 inches.
• This item is identified as an AR-15 accessory.

This Model 1 upper and handguard set provides a solid foundation for a custom AR-15 build, offering a billet receiver and a long free-floating M-LOK handguard for modular accessory placement. The included Radian Raptor SD charging handle and hardware make it easier to integrate into a build while the billet construction offers a durable, precision-aligned mounting surface for optics and rails.