Davidson Defense Divot 16-inch Carbine-Gas 1:10 7.62x39mm AR-15 KeyMod Rifle Complete Upper Build

Divot 16-Inch Carbine-Gas 7.62x39mm AR-15 KeyMod Complete Upper Build

This is a complete upper assembly built around the 7.62x39mm platform with a 16-inch HBAR barrel, free-float KeyMod handguard, and everything needed to function. The Divot upper comes with a nitride bolt carrier group and charging handle included, so you're getting a ready-to-mount upper that handles the Soviet cartridge reliably. The barrel uses a 1:10 twist rate optimized for 7.62x39mm ammunition, paired with a carbine-length gas system that keeps the action cycling smoothly without excessive recoil impulse.

Key Features

• 16-inch HBAR barrel in 7.62x39mm with 1:10 twist rate
• Free-float Trinity Force ECHO KeyMod handguard with full-length Picatinny rail
• Carbine-length gas system with low-profile steel gas block
• Type III anodized upper receiver with dust cover pin feature
• Nitride bolt carrier group and mil-spec charging handle included
• Tanker style 3-port muzzle brake with crush washer
• 5/8x24 threaded muzzle for suppressor compatibility

Perfect For

• Shooters building a 7.62x39mm AR platform for the first time
• Hunters or sport shooters wanting a shorter, handy rifle configuration
• Budget-conscious builders seeking a complete upper assembly
• Those looking to use existing 7.62x39mm ammunition supplies

KeyMod Rail System and Modularity

The Trinity Force ECHO KeyMod handguard offers a versatile mounting platform for optics, lights, and tactical accessories. KeyMod slots run along the sides and bottom of the rail, giving you flexibility to attach gear without committing to a full-length top rail. The integrated full-length Picatinny rail on top ensures your primary optic has a solid, standard platform. This modular approach lets you customize your setup as your needs evolve.

7.62x39mm Performance and Compatibility

Building an AR in 7.62x39mm gives you access to affordable ammunition while maintaining the familiar AR-15 ergonomics and controls. The 1:10 barrel twist is the standard for this cartridge, stabilizing rounds from 120 to 154 grains reliably. The carbine-length gas system keeps the rifle balanced and manageable in close-quarters scenarios, and the HBAR profile absorbs recoil better than a pencil barrel while maintaining reasonable weight.

Barrel and Gas System Design

The Sagger barrel uses 4150 CrMoV steel with enhanced phosphate finish, providing corrosion resistance and durability. The carbine-length gas tube and low-profile gas block work together to cycle the action efficiently without over-gassing the system. This setup reduces wear on components and keeps felt recoil moderate, making follow-up shots faster and more controllable than you'd get from a rifle-length system in the same platform.

Complete Upper Assembly Included Components

This upper includes the bolt carrier group and charging handle, so you only need to pair it with a lower receiver to have a complete rifle. The nitride-finished bolt carrier group is built specifically for 7.62x39mm, with the correct bolt face and extractor dimensions. The mil-spec charging handle works with standard AR-15 upper receivers and is familiar to anyone who has run an AR platform before.

Follow safe handling and manufacturer instructions.

Ensure compliance with all applicable federal, state, and local laws.

Lower receiver not included.