Davidson Defense Ronin Competition 16.5" AR-15 5.56 NATO Complete Upper, Mid-Gas, Free-Float M-LOK

Ronin Competition 16.5-Inch Mid-Gas 5.56 NATO AR-15 Complete Upper

The Davidson Defense Ronin Competition upper delivers a balanced mid-gas setup built for shooters who want reliable cycling without excessive recoil. This complete upper pairs a 16.5-inch 4150 chrome moly vanadium barrel with a 1:7 twist rate, mid-length gas system, and a freefloat M-Lok handguard. The upper receiver is billet aluminum with a type III hard coat anodized finish, and the bolt carrier group is USA-made 9310 and 8620 alloy steel with nitride treatment. Everything you need is included except the lower receiver.

Key Features

• 16.5-inch 4150 chrome moly vanadium barrel with nitride finish and 1/2x28 thread pitch
• 1:7 twist rate handles full range of 5.56 NATO and .223 loads
• Mid-length gas system reduces felt recoil while maintaining reliable cycling
• Freefloat 15-inch M-Lok handguard in 6061-T6 aluminum with type III hard coat anodize
• Black Diamond Series billet upper receiver, 6061-T6 aluminum, type III hard coat anodize
• USA-made bolt carrier group in 9310 and 8620 alloy steel with nitride finish
• Mil-spec M4 charging handle and GI birdcage flash hider included

Perfect For

• Shooters building a mid-range competition or duty rifle
• Builders wanting a complete upper assembly without lower receiver
• Users prioritizing reliable mid-gas cycling and manageable recoil
• Precision shooters working with standard 5.56 NATO ammunition

Balanced Mid-Gas Performance

The mid-length gas system strikes a balance between the faster cycling of carbine-length and the softer recoil of rifle-length systems. This setup keeps felt recoil moderate while maintaining reliable bolt carrier movement across different ammunition weights. The 1:7 twist rate stabilizes everything from 55-grain varmint loads to heavier 77-grain match ammunition, making this upper flexible for different shooting scenarios.

Freefloat Handguard and Accuracy

The 15-inch M-Lok handguard floats independently from the barrel, removing pressure that can shift point of impact. This design reduces variables in accuracy and allows the barrel to vibrate naturally during firing. The aluminum construction keeps weight down while the type III hard coat anodize provides durability and corrosion resistance in field conditions.

USA-Made Bolt Carrier Group

The bolt carrier group uses 9310 alloy steel for the bolt itself, a material chosen for its strength and durability under repeated firing cycles. The carrier body is 8620 alloy steel with nitride finish, protecting against wear and corrosion. This USA-made component ensures consistent headspace and reliable extraction across thousands of rounds.

Lower receiver not included. Follow safe handling and manufacturer instructions. Ensure compliance with all applicable federal, state, and local laws.