Davidson Defense Ronin Competition 16-inch .22 LR AR-15 M-Lok Handguard Rifle Complete Upper Build

Ronin Competition 16-Inch .22 LR AR-15 Complete Upper

This is a complete upper receiver assembly built for .22 LR shooting on the AR-15 platform. It pairs a dedicated .22 LR barrel with a stainless steel bolt group, optimized upper receiver, and free-float M-LOK handguard. The direct blowback system cycles .22 LR rounds reliably while keeping recoil minimal. This upper delivers the accuracy and ergonomics of an AR-15 in a rimfire platform perfect for training, competition, or high-volume shooting.

Key Features

• Dedicated .22 LR barrel with nitride finish and 1:16 twist rate
• Stainless steel bolt group designed specifically for .22 LR
• Free-float 15-inch M-LOK handguard with full-length Picatinny rail
• Type III hard coat anodized upper receiver
• Direct blowback operating system
• A2 birdcage flash hider with crush washer
• Mil-spec charging handle included

Perfect For

• Rimfire competition shooters
• High-volume training and practice builds
• AR-15 platform shooters expanding into .22 LR
• Budget-conscious builders seeking dedicated rimfire uppers
• Shooters prioritizing low recoil and soft shooting

Why .22 LR on AR-15 Platform

The .22 LR upper transforms your AR-15 lower into an economical training tool without sacrificing platform familiarity. You maintain ergonomics and controls while shooting at a fraction of the cost per round. The dedicated bolt group and barrel are essential because standard .223 components won't cycle .22 LR reliably. This upper handles that conversion so you don't have to guess at compatibility.

Handguard and Mounting Ecosystem

The ACE Series free-float handguard isolates the barrel from contact, which improves shot-to-shot consistency. M-LOK attachment points let you mount lights, grips, or other accessories without rail clutter. The full-length Picatinny rail on top accepts any standard optic mounting system. This gives you flexibility to build the exact configuration you need.

Nitride Barrel and Durability

The 4140 steel barrel receives a nitride finish that resists corrosion and extends service life. Nitride also reduces friction, which matters when shooting high-volume .22 LR sessions. The pencil profile keeps weight down while maintaining structural integrity for a 16-inch configuration.

Follow safe handling and manufacturer instructions. Ensure compliance with all applicable federal, state, and local laws. Bolt carrier group and charging handle are included with this complete upper. Lower receiver not included.