The Black Diamond Specter XL Top End 5.56mm Nato 16" Bbl 1-8 is a complete upper receiver assembly built to deliver dependable performance on your AR-15 platform. Featuring a 16-inch barrel chambered in 5.56mm Nato and a 1:8 twist rate, this top end is designed to provide consistent accuracy with a wide range of bullet weights. Its extended railed handguard offers generous space for mounting optics and accessories while maintaining a solid, rigid feel.
This upper is ideal for shooters who want to upgrade an existing lower receiver for range work, training, or general-purpose use. The 5.56mm Nato chambering keeps ammunition options flexible, and the 16-inch barrel length balances handling with effective downrange performance. Whether you are refining your skills on the range or building a reliable all-around rifle, this top end reflects Yankee Hill Machine’s reputation for precise machining and durable construction.
- Manufacturer: Yankee Hill Machine
- Model: Black Diamond Specter XL Top End
- Caliber: 5.56mm Nato
- Barrel Length: 16"
- Twist Rate: 1:8
- Style: Complete upper receiver
| __Model | Black Diamond Specter XL Top End |
| __Caliber | 5.56 NATO |
| __Capacity | NA |
| __Barrel Length | NA |
| __Optic Footprint | NA |
| __Action | NA |
