Details
Davidson Defense 'Ox Tail' 7.5-Inch AR-15 5.56 NATO Stainless Pistol Upper Build Kit
The. Davidson. Defense 'Ox Tail' is a complete 7.5-inch AR-15 pistol upper built on a 7075-T6 aluminum receiver with a 416R stainless steel barrel. This upper delivers the compact size and handling characteristics shooters want for short-range work, home defense, or pistol-caliber-style configurations on an AR platform. The stainless barrel resists corrosion, while the polished finish adds durability. Everything you need to install on a compatible lower is included, except the bolt carrier group and charging handle.
Key Features
- 7.5-inch 416R stainless steel barrel with 1:7 twist rate, 1/2x28 thread pitch
- 7075-T6 aluminum upper receiver with anodized finish
- 7-inch M-LOK freefloat handguard for modular accessory mounting
- Pistol length gas tube with 0.750-inch micro low-profile gas block
- Forward assist assembly and ejection port door included
- A2 birdcage flash hider with crush washer pre-installed
- Government profile barrel with M4 feed ramp
Perfect For
- Short-range shooting and home defense configurations
- Pistol-length AR builds on compatible lower receivers
- Shooters wanting a compact upper with corrosion-resistant stainless construction
- Those building a dedicated 5.56 NATO platform with minimal length
Compact Size, Stainless Durability
At 7.5 inches, this barrel length sits in the sweet spot for handling and velocity. The 416R stainless steel barrel resists rust and corrosion far better than standard chrome-moly, making it ideal if you're storing your firearm long-term or shooting in wet conditions. The polished stainless finish is tough and visually distinct from traditional black barrels. You're getting real material quality here, not a budget compromise.
M-LOK Freefloat Handguard and Accessory Compatibility
The 7-inch M-LOK handguard floats freely, meaning it doesn't contact the barrel. This design improves accuracy consistency by removing pressure that can shift point of impact. The M-LOK slots accept industry-standard rail sections, so you can mount lights, grips, or other accessories exactly where you need them. No proprietary mounting system, just standard modular compatibility.
What's Included and What Isn't
This upper includes the barrel, receiver, handguard, gas system, forward assist, ejection port door, and muzzle device. You'll need a bolt carrier group and charging handle to complete the upper. A compatible lower receiver is required to fire this upper. The gas system is optimized for the 7.5-inch barrel length, so cycling is tuned to this configuration.
Follow safe handling and manufacturer instructions. Ensure compliance with all applicable federal, state, and local laws. BCG and charging handle are not included.
