Radian Weapons R0403 Model 1 Builder Kit 15.5"

Radian Weapons R0403 Model 1 Builder Kit

The Radian Weapons Model 1 Builder Kit provides everything needed to construct a modern, fully ambidextrous AR-15 platform. This comprehensive package combines quality components with thoughtful design for shooters who demand reliability and user-friendly controls.

What's Included

Upper Receiver Assembly:

• Billet upper receiver with integrated dust cover
• Anti-rotation pin for secure barrel installation
• Lightweight forward assist
• Aluminum barrel nut with matching wrench
• Four handguard cross bolts with washers and nuts

Lower Receiver & Controls:

• Radian AX556 billet lower receiver
• Talon 45/90 ambidextrous safety selector
• Ambidextrous bolt catch and release
• Ambidextrous magazine release
• Enhanced takedown pin set

Handguard:

• 15.5-inch Magpul M-LOK modular attachment interface
• Slim profile for comfortable handling
• Ample accessory mounting options

Charging Handle:

• Raptor-SD ambidextrous charging handle
• Smooth, reliable operation from either side

Design Philosophy

Radian Weapons has engineered this kit for shooters who value ambidextrous controls and precision manufacturing. The billet construction ensures tight tolerances and durability. All components work together seamlessly, reducing assembly complexity while maintaining the highest standards of fit and finish.

This builder kit is ideal for those constructing their first AR-15 or upgrading to a more capable platform.