KAK's K-SPEC 5.56 NATO 13.9'' BBL 1-7 Twist Complete Upper is engineered for precision and reliability. Featuring a government contour barrel, anodized matte black finish, and mid-length gas system, this upper receiver is designed for seamless integration with AR-15 platforms. Ideal for target shooting and competitive applications, KAK's reputation for innovation ensures dependable performance.

Key Features:
- Manufacturer: KAK
- Model: K-SPEC 5.56 NATO 13.9'' BBL 1-7 Twist Complete Upper
- Caliber: 5.56x45mm NATO
- Condition: New
- Finish Color: Matte Black
- Barrel Length: 13.9"
- Muzzle Threads: 1/2-28
- Gas System Length: Mid-Length
- Material: Aluminum
- Unique Features: Chrome-lined barrel, PentaComp muzzle device
- What's In The Box: Complete Upper Receiver