Davidson Defense Ronin Competition 16.5" AR-15 .223 Wylde Build Kit, Mid-Gas, Plan B Scorch Flash Hider

Ronin Competition 16.5" AR-15 .223 Wylde Full Build Kit with Plan B Scorch Flash Hider

This is a complete mid-gas AR-15 build kit featuring a 16.5-inch .223 Wylde barrel with a 1:7 twist rate, freefloat M-Lok handguard, and a Plan B Scorch flash hider for modular suppressor mounting. The kit includes a billet upper receiver, nitride-finished barrel, complete bolt carrier group, and all lower assembly components. Lower receiver not included.

Key Features

• 16.5-inch 4150 Chrome Moly Vanadium barrel with nitride finish and 1:7 twist rate for reliable .223 Wylde performance
• Freefloat M-Lok handguard design for accuracy and accessory mounting flexibility
• Plan B Scorch 3-prong flash hider with modular suppressor mounting ecosystem compatibility
• Mid-gas system with micro low-profile gas block for balanced recoil management
• Black Diamond Series billet upper receiver, USA made from 6061-T6 aluminum
• Complete bolt carrier group in 9310 alloy steel with nitride finish
• AR-15 M4 mil-spec charging handle and adjustable carbine stock included
• All lower parts kit components for receiver completion

Perfect For

• Competitive shooters seeking a reliable mid-range platform
• Builders wanting a complete upper and lower assembly solution
• Shooters planning to add a suppressor through the Plan B ecosystem
• Those prioritizing accuracy with a freefloat design

Plan B Scorch Flash Hider Integration

The Breek Arms Plan B Scorch flash hider isn't just a flash reducer. It's a modular mounting interface that opens your rifle to the Plan B suppressor ecosystem. The 3-prong design effectively reduces muzzle flash while maintaining the accuracy you need for competition. The Plan B system lets you swap suppressors and adapters without changing your muzzle device, making it a smart long-term investment if you're building your suppressor collection.

Mid-Gas System Performance

This kit runs a mid-length gas system, which sits between carbine and rifle-length setups. Mid-gas systems reduce felt recoil and brass ejection distance compared to carbine-length systems, while maintaining reliable cycling with standard 5.56 ammunition. The micro low-profile gas block keeps your handguard clear and doesn't interfere with accessory mounting on the M-Lok rail.

Barrel Specifications and Accuracy

The 16.5-inch barrel gives you velocity close to an 18-inch rifle setup while keeping overall length manageable. The 1:7 twist rate stabilizes everything from 55-grain varmint loads to 77-grain match ammunition, making this barrel genuinely versatile. Nitride finishing provides corrosion resistance and durability without sacrificing accuracy. The government profile keeps weight reasonable while maintaining rigidity where it matters.

Freefloat Handguard Design

The M-Lok handguard floats away from the barrel, meaning the barrel doesn't contact the rail system. This eliminates a major source of accuracy variance. M-Lok slots give you unlimited attachment options for lights, grips, and other accessories without the density of Picatinny rail.

Follow safe handling and manufacturer instructions. Ensure compliance with all applicable federal, state, and local laws. Lower receiver not included. BCG and charging handle are included. Verify compatibility before using any suppressor or suppressor-ready component.