Davidson Defense Ronin Competition 6-inch 1:10 9MM AR-9 Freefloat M-Lok Handguard Pistol Complete Upper Build

Davidson Defense Ronin Competition AR-9 Complete Upper - 6-inch, 9mm, M-Lok Freefloat Handguard, Linear Compensator

The Davidson Defense Ronin Competition is a 9mm AR-9 complete upper built around a 6061-T6 billet aluminum upper receiver with a Type 3 Class 2 hardcoat anodized finish. The build includes a 6-inch medium profile barrel in 4150 chrome moly vanadium steel with a nitride finish, a 1:10 twist rate, and a 1/2x28 thread pitch, a 7-inch freefloat M-Lok handguard in black aluminum with a lightweight slim profile and partial Picatinny top rail section, a black linear compensator at 1/2x28, a 9mm nitride-finished 8620 alloy steel bolt carrier group compatible with Glock and Colt pattern magazines with external extractor, and a Mil-Spec M4 charging handle.

Key Features

• 6061-T6 billet aluminum upper receiver, Type 3 Class 2 hardcoat anodized finish
• 6-inch medium profile barrel, 4150 chrome moly vanadium, nitride finish
• 9mm
• 1:10 twist rate
• 1/2x28 thread pitch
• 7-inch freefloat M-Lok handguard, black aluminum, partial Picatinny top rail, lightweight slim profile
• Black linear compensator, 1/2x28
• 9mm 8620 alloy steel bolt carrier group, nitride finish, Glock and Colt magazine compatible, external extractor
• Mil-Spec M4 charging handle

Perfect For

• AR-9 builders sourcing a complete 9mm upper with BCG and charging handle included in a compact 6-inch configuration
• Shooters pairing this complete upper with an existing AR-9 lower assembly
• Builders looking for a compact 9mm complete upper compatible with Glock and Colt pattern magazines

Barrel and Muzzle Device

The barrel is a 6-inch medium profile unit in 4150 chrome moly vanadium steel with a nitride finish, chambered in 9mm with a 1:10 twist rate and a 1/2x28 thread pitch. A black linear compensator at 1/2x28 covers the muzzle end of this complete upper.

Upper Receiver and Handguard

The 6061-T6 billet upper receiver features a Type 3 Class 2 hardcoat anodized finish, forming the structural core of the upper assembly. The 7-inch freefloat M-Lok handguard is black aluminum with a lightweight slim profile and a partial Picatinny top rail section, surrounding the barrel without contact and providing M-Lok mounting positions and a top rail segment for compatible accessories.

Bolt Carrier Group and Charging Handle

The included 9mm bolt carrier group is 8620 alloy steel with a nitride finish, compatible with Glock and Colt pattern magazines via an external extractor design. The BCG and Mil-Spec M4 charging handle work together to cycle the action and complete the upper side component set needed to run this complete upper on a compatible AR-9 lower receiver.

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