The Radian Model 1 Upper/Handguard Set for AR-15 with a 15.5" handguard offers extended versatility for longer barrel configurations. This set features a billet-machined 7075-T6 aluminum upper receiver with M4 feed ramps and a 15.5" M-LOK compatible handguard. The upper receiver is structurally reinforced, while the handguard provides extensive mounting options with M-LOK slots at 3, 6, and 9 o'clock positions and a full-length Picatinny top rail.

Features and Specifications:

• Upper Receiver: Billet 7075-T6 aluminum with M4 feed ramps
• Handguard: 15.5" M-LOK compatible, 7075-T6 aluminum
• Finish: Black Cerakote
• Handguard Height: 2.1"
• Handguard Width: 1.81"
• Handguard Inner Diameter: 1.33" (1.68" with gas tube channel)
• Weight (with barrel nut): Approximately 1.8 lbs
• Includes: Upper receiver, handguard, aluminum barrel nut, Raptor-SD charging handle, barrel nut wrench, anti-rotation pin, hardware