Radian Model 1 Complete Upper 18" 6mm ARC Gray Cerakote AR-15

This Radian Model 1 Complete Upper Receiver is a fully assembled AR-15 upper built around an 18-inch barrel chambered in 6mm ARC with a 1:7 twist rate, finished in gray Cerakote for durability and corrosion resistance. The billet machined 7075-T6 upper receiver includes M4 feed ramps and pairs with a proprietary extended aluminum handguard featuring the M-LOK modular mounting system.

Each assembly ships with an enhanced Black Nitride M16 bolt carrier group and a Radian Raptor-SD suppressor-optimized ambidextrous charging handle, and the 5/8x24 thread pitch accepts standard muzzle devices. Fully ambidextrous controls suit both left- and right-handed shooters, and the upper is hand-assembled by trained gunsmiths and backed by a lifetime guarantee.

Key Features

Brand	Radian Weapons
Product Type	Complete Upper Receiver
Model	Model 1
Platform	AR-15
Caliber	6mm ARC
Barrel Length	18"
Twist Rate	1:7
Finish	Gray Cerakote
Upper Receiver Material	Billet Machined 7075-T6 Aluminum
Feed Ramps	M4
Handguard	Proprietary Extended Aluminum with M-LOK
Bolt Carrier Group	Enhanced Black Nitride M16
Charging Handle	Radian Raptor-SD Ambidextrous
Thread Pitch	5/8x24
Condition	New
Warranty	Lifetime Guarantee

Highlights

• 18-inch barrel chambered in 6mm ARC with 1:7 twist rate
• Billet machined 7075-T6 upper receiver with M4 feed ramps
• Gray Cerakote finish for durability and corrosion resistance
• Proprietary extended aluminum handguard with M-LOK modular mounting system
• Enhanced Black Nitride M16 bolt carrier group included
• Radian Raptor-SD suppressor-optimized ambidextrous charging handle
• 5/8x24 thread pitch for muzzle device compatibility
• Fully ambidextrous controls for left- and right-handed shooters
• Hand-assembled by trained gunsmiths

Warranty

Lifetime guarantee and hand-assembled by trained gunsmiths

What's included

• Radian Model 1 Complete Upper Receiver
• Enhanced Black Nitride M16 bolt carrier group
• Radian Raptor-SD ambidextrous charging handle

Frequently asked questions What is the barrel twist rate of this upper? The 18-inch 6mm ARC barrel has a 1:7 twist rate. What bolt carrier group and charging handle are included? It comes with an enhanced Black Nitride M16 bolt carrier group and a Radian Raptor-SD suppressor-optimized ambidextrous charging handle. What muzzle device thread pitch does the barrel use? The barrel has a 5/8x24 thread pitch for muzzle device compatibility. Is this upper suitable for left-handed shooters? Yes, it has fully ambidextrous controls for both left- and right-handed shooters.