XTS 12″ 5.56 NATO Complete Upper Receiver Assembly – Choose Your Build
Price range: $300.00 through $470.00
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Purpose-built for shooters who demand reliability, modularity, and aggressive modern styling, the XTS 5.56 Complete Upper Receiver Assembly delivers a ready-to-run platform engineered for performance.
Designed around precision machining, rugged durability, and configurable tactical options, this upper allows you to customize your rifle setup with your preferred finish, muzzle device, and charging handle configuration.
Whether you're building a duty rifle, range setup, truck gun, or modern sporting rifle, the XTS platform is engineered to perform under pressure while maintaining the clean, aggressive aesthetic that defines the brand.
Customize Your Build
Configure your upper exactly the way you want it:
Available Color Configurations
Select from multiple tactical color options to match your rifle setup and personal style.
Muzzle Device Options
Choose the muzzle device configuration that best fits your shooting style, recoil preference, and overall rifle profile.
Mil-Spec Charging Handle
A proven and dependable standard configuration built for reliability and simplicity.
Ambidextrous Charging Handle
Enhanced manipulation and faster operation from either side of the rifle. Ideal for modern tactical applications, off-hand shooting, and faster weapon manipulation under stress.
Built for Real-World Performance
Every XTS Complete Upper is assembled with performance, handling, and durability in mind.
Features
- Precision machined upper receiver
- Free-float M-LOK handguard system
- Lightweight and balanced design
- Enhanced ergonomics
- Tight fitment and clean machining
- Optimized for modern AR-platform builds
- Tactical styling with functional performance
- Ready-to-install complete upper assembly
Built to perform during:
- Range training
- Tactical applications
- Recreational shooting
- Home defense configurations
- Competition setups
Aggressive Styling. Functional Design.
The XTS platform was designed to merge tactical utility with modern industrial styling.
Clean lines, purpose-driven contours, and premium component selection create an upper assembly that not only performs exceptionally, but looks aggressive and refined while doing it.
No unnecessary bulk.
No gimmicks.
Just performance-focused design.
What’s Included
- Complete assembled upper receiver
- Installed free-float handguard
- Selected muzzle device
- Selected charging handle configuration
(BCG sold separately unless otherwise specified.)
Compatibility
Compatible with standard AR-15 lower receivers chambered in 5.56 NATO / .223 platforms.
Why Choose XTS?
At Xtreme Tactical Sports, every product is designed around modern shooter expectations:
- Reliability
- Modularity
- Tactical functionality
- Clean industrial aesthetics
Built for shooters who expect more from their gear.
Additional information
| Color | Black, Blue, Bronze, Purple, Red, Silver |
|---|---|
| Firearm | AR-15 |
| Muzzle Device | A2 Bird Cage Black (MZ1001), A2 Bird Cage Stainless (1001SS), AR Fake Can / Flash Hider (MZ-FSFH), Phase-1 Two Piece Muzzle Device Black (Phase-1LA), Phase-1 Two Piece Muzzle Device FDE (Phase-1FLA) |
| BCG | With, Without |
| Caliber | .223 / 5.56, .300 Blackout |
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