Radian Weapons R0427 Model 1 Builder Kit — 10-inch M-LOK

The Radian Weapons R0427 Model 1 Builder Kit is a matched receiver set and hardware package intended for AR-15 builders. The kit pairs a billet upper receiver with a 10-inch Magpul M-LOK handguard and includes a Radian A-DAC 15 lower along with ambidextrous controls and installation hardware. Components are provided to support a complete build; final assembly must comply with all applicable federal, state and local laws.

Key Specifications

• Configured for the AR-15 platform.
• Includes 1x billet upper receiver with dust cover, anti-rotation pin and lightweight forward assist installed.
• Includes a 10-inch Magpul M-LOK handguard.
• Includes 1x Radian A-DAC 15 lower receiver.
• Includes a Raptor-SD ambidextrous charging handle.
• Includes a Radian Talon 45/90 ambidextrous safety selector.
• Includes an ambidextrous bolt catch & release.
• Includes an ambidextrous magazine release.
• Includes 1x enhanced takedown pin set.
• Includes 4x hand guard cross bolts with washers and nuts, plus a 1x aluminum barrel nut and 1x barrel nut wrench.

This builder kit supplies the core receivers, controls and modular M-LOK interface needed for a customized AR-15 project. The included ambidextrous components and installation hardware provide a practical foundation for a reliable, user-configured build.