Radian Weapons R0406 Model 1 Builder Kit 15.5″ M-LOK FDE

This Radian Weapons Model 1 Builder Kit is a comprehensive assembly package intended for building an AR-style rifle platform. It features a 15.50″ Magpul M-LOK handguard finished in Flat Dark Earth and is described as multi-caliber. The kit ships with a selection of matched components to simplify the build process while providing ambidextrous controls and installation hardware.

Key Specifications

• The handguard measures 15.50 inches and uses the Magpul M-LOK modular attachment interface.
• The handguard finish is Flat Dark Earth (FDE).
• The kit includes 1 Billet Upper Receiver with dust cover, anti-rotation pin, and lightweight forward assist installed.
• The kit includes 1 Radian AX556 Lower Receiver.
• The kit includes 1 Raptor-SD Ambidextrous Charging Handle.
• The kit includes 1 Radian Talon 45/90 Ambidextrous Safety Selector.
• The kit includes ambidextrous bolt catch and release and ambidextrous magazine release.
• The kit includes 1 enhanced takedown pin set, 1 aluminum barrel nut, and 1 barrel nut wrench for installation.
• The kit includes 4 hand guard cross bolts with washers and nuts for secure attachment.

Designed for builders who want a coordinated set of components, this kit delivers core upper and lower hardware, ambidextrous controls, and a long M-LOK handguard in a serviceable finish. It provides the foundational parts needed to assemble a versatile AR-style rifle platform while keeping component selection straightforward and compatible with common standard accessories.