Davidson Defense Yari 16-inch 1:10 9MM AR-9 Freefloat Keymod Handguard Rifle Complete Upper Build

Yari 16-inch 1:10 9mm AR-9 Freefloat Keymod Rifle Complete Upper

The Yari is a 9mm AR-9 Complete Upper built around a 16-inch platform. The kit centers on a 16-inch M4 profile barrel in 416R stainless steel with a stainless finish, 1:10 twist rate, and 1/2x36 thread pitch, paired with a black A2 birdcage flash hider and a black 1/2-inch crush washer. The upper receiver is a Vertex Enhanced pistol caliber billet aluminum PCC upper receiver, paired with a 12-inch Trinity Force ECHO Rail freefloat Keymod handguard in black aluminum with a full-length Picatinny top rail. A 9mm nitride bolt carrier group in 8620 alloy steel with an external extractor, compatible with Glock and Colt pattern magazines, and a Mil-Spec AR-15 M4 charging handle complete the upper component set.

Key Features

• 16-inch M4 profile barrel, 416R stainless steel, stainless finish, 1:10 twist, 1/2x36 thread pitch
• Black A2 birdcage flash hider, 1/2x36, black crush washer included
• Vertex Enhanced pistol caliber billet aluminum PCC upper receiver
• Trinity Force ECHO Rail 12-inch freefloat Keymod handguard, black aluminum, full-length Picatinny top rail
• 9mm nitride bolt carrier group, 8620 alloy steel, external extractor, Glock and Colt pattern magazine compatible
• Mil-Spec AR-15 M4 charging handle

Perfect For

• Builders sourcing a complete 9mm AR-9 upper with a Vertex Enhanced PCC billet upper and Trinity Force ECHO Rail Keymod handguard ready to pair with their own lower receiver
• Shooters building a 16-inch 9mm rifle platform who want Glock and Colt pattern magazine compatibility and the BCG and charging handle already included
• AR-9 builders who want a 12-inch freefloat Keymod handguard with a full-length Picatinny top rail on a dedicated PCC billet upper covered in one complete upper

Barrel and Muzzle Device

The 16-inch M4 profile barrel is chambered in 9mm and constructed from 416R stainless steel with a stainless finish. The twist rate is 1:10 and the thread pitch is 1/2x36, which matches the included black A2 birdcage flash hider. A black 1/2-inch crush washer is included with the muzzle device. The stainless barrel provides a two-tone contrast against the black anodized upper components and black handguard.

Vertex Enhanced PCC Upper Receiver and Handguard

The Vertex Enhanced pistol caliber billet aluminum PCC upper receiver is purpose-built around the AR-9 platform. The Trinity Force ECHO Rail 12-inch freefloat Keymod handguard is black aluminum with a full-length Picatinny top rail and Keymod attachment points along the body for accessory mounting. These two components define the exterior structure of the upper assembly on this AR-9 platform.

9mm Bolt Carrier Group and Charging Handle

The 9mm nitride bolt carrier group is 8620 alloy steel with an external extractor, compatible with both Glock and Colt pattern magazines. A Mil-Spec AR-15 M4 charging handle is included to complete the upper component set.

Follow safe handling and manufacturer instructions. Ensure compliance with all applicable federal, state, and local laws.