Radian Weapons Model 1 Builder Kit - AR-15, 15.5 in M-LOK Handguard, Radian Brown, Ambidextrous Charging Handle, USA
This Radian Weapons Model 1 Builder Kit is a factory-new, Oregon-made AR-15 platform foundation finished in Radian Brown. It pairs a Model 1 upper with an A-DAC 15 lower and a 15.5-inch free-float M-LOK handguard that features a continuous 12 o'clock Picatinny rail and a secure anti-rotation interface. The components are color-matched, marked with factory rollmarks, and include an ambidextrous charging handle. As a builder kit, it is configured for your choice of barrel, bolt carrier group, fire-control group, and stock or brace.
Condition
Overall Condition: Factory new condition, unfired with no signs of handling. Includes all accessories and paperwork in the original factory box/case.
Bore Condition: Not applicable; no barrel is included with this builder kit.
Specific Condition Notes: Practically no markings from any handling. The builder kit does not include a barrel, bolt carrier group, stock or brace, or fire-control group. Refer to the photos for a close look at surfaces and markings.
What’s Included
- Radian Builder Kit owner's manual/booklet
- Barrel nut wrench
- Radian Builder Kit factory box (label R0405, 15.5 in HG / Brown)
- Radian-branded stickers/decals
The upper receiver is marked "RADIAN MODEL 1" and the lower receiver is marked "A-DAC 15" and "MULTI CAL," providing clear, factory-applied identification that matches the Model 1 series. All major components are finished in Radian Brown for a consistent, uniform appearance.
The 15.5-inch free-float M-LOK handguard integrates a continuous 12 o'clock Picatinny rail, an anti-rotation interface, and a multi-screw clamp for secure alignment and mounting. This setup supports solid accessory placement along the top rail and M-LOK slots.
The A-DAC 15 lower includes an integral trigger guard and a flared magazine well to streamline handling. The charging handle is ambidextrous, enhancing usability from either side.
Designed and manufactured in Oregon, USA, this builder kit provides a high-quality AR-15 platform foundation. It ships as a builder configuration and excludes the barrel, bolt carrier group, stock/brace, and fire-control group, allowing you to select and install your preferred components.
Factory data for this configuration is identified by MPN R0405 and the Radian Brown finish with a 15.5-inch handguard.