Radian Weapons R0436 Model 1 Builder Kit 8.5"
- 10" FDE Builder Kit $1,254.95
- 15.5" Builder Kit $1,399.95
- 223 Wylde 14.5" Carbine $3,149.95
- 223 Wylde 14.5" FDE $3,149.95
- 223 Wylde, 14.5" P&W, OD Green $3,149.95
- 223 Wylde, 14.5" Pinned Barrel $3,149.95
- 223 Wylde, 16" Barrel $3,179.95
- 223 Wylde, 16" Barrel, FDE $3,179.95
- 223 Wylde, 16" Barrel, OD Green $3,179.95
- CA Compliant, 223 Wylde $3,179.95
- CA Compliant, 223 Wylde, 16" $3,179.95
Complete AR-15 upper and lower receiver set with 8.5" M-LOK handguard, ambidextrous controls, and all hardware needed to build a modern tactical rifle.
Radian Weapons R0436 Model 1 Builder Kit
This comprehensive builder kit provides everything needed to assemble a modern, fully ambidextrous AR-15 platform rifle. Radian Weapons has engineered each component with precision and attention to detail, making this an excellent choice for shooters who demand quality and reliability.
What's Included
Upper Receiver Assembly:
- Billet upper receiver with integrated dust cover
- Anti-rotation pin for enhanced reliability
- Lightweight forward assist for reduced reciprocating mass
- 8.5" M-LOK compatible handguard for modern accessory mounting
- Aluminum barrel nut with wrench for proper installation
- Four handguard cross bolts with washers and nuts
Lower Receiver & Controls:
- Radian AX556 billet lower receiver
- Raptor-SD ambidextrous charging handle for left or right-hand operation
- Talon 45/90 ambidextrous safety selector with positive engagement
- Ambidextrous bolt catch and release
- Ambidextrous magazine release
- Enhanced takedown pin set for smooth operation
Why This Kit Matters
The 8.5" barrel length makes this platform ideal for short-range tactical applications, home defense, or specialized shooting disciplines. The M-LOK handguard interface provides modern modularity—attach lights, lasers, grips, and other accessories exactly where you need them.
Every component is designed for ambidextrous operation, making this kit equally suitable for right-handed or left-handed shooters. The billet construction throughout ensures durability and precision tolerances that will serve you reliably for years.
This is a builder kit—you'll need to source a barrel, bolt carrier group, and trigger group separately to complete your rifle. For experienced builders or gunsmiths, this represents a premium foundation for a custom AR-15 platform.
