Radian Weapons Model 1 Builder Kit AR-15 — Matched Billet Receivers with 15.5-inch M-LOK Handguard, Flat Dark Earth — SKU R0406, Made in USA
This Radian Weapons Model 1 Builder Kit stands out for its matched billet upper and ADAC-15 lower receivers paired with a 15.5-inch free-float M-LOK handguard, all finished in Flat Dark Earth. It incorporates Radian's integrated A-DAC feature for bolt lock via the magazine release and includes a factory ambidextrous safety selector kit (not installed). The kit is factory new and made in the USA.
Condition
Overall Condition: Factory new condition, unfired with no signs of handling. Original factory box/case is not included.
Bore Condition: Not applicable; no barrel is included with this builder kit.
Mechanics: Not applicable; bolt carrier group, trigger group, and buffer assembly are not included.
Finish: Flat Dark Earth finish shows no signs of handling.
Stocks/Grips: Not included.
Sights: Not included.
Specific Condition Notes: There are practically no handling marks. This builder kit does not include a barrel, bolt carrier group, trigger group, or buffer assembly. Please refer to the photos for details.
What's Included
- Radian ambidextrous safety selector kit (not installed)
- Barrel nut wrench for Radian handguard
- Radian Builder Kit manual
- Original factory box/case not included
The heart of this kit is the matched billet receiver set: a Model 1 upper and the ADAC-15 lower with Radian's integrated A-DAC system that enables bolt lock via the magazine release. The receivers are designed for the AR-15 pattern and finished to match in Flat Dark Earth.
The included 15.5-inch free-float M-LOK handguard provides generous mounting space for accessories. The kit also includes the correct barrel nut wrench for this handguard, streamlining assembly. Note that the 15.5-inch measurement denotes handguard length, not barrel length.
The upper receiver features a top rail, and the handguard's M-LOK interface offers flexible attachment options. The kit is marked Multi caliber and uses aluminum receiver construction.