The Sharps Bros Billet Upper is a stripped AR-15 upper receiver machined from 7075-T6 aluminum with a black anodized finish. At 9 oz it's on the lighter end for billet uppers, and the anodizing holds up well against corrosion and normal wear. 
 

Key Specifications 

• Caliber: 5.56 
• Condition: New in Box 
• Finish Per Color: Black Anodized 
• Manufacturer: Sharps Bros 
• Manufacturer Part Number: SBUR04 
• Model: Billet Upper 
• Type: Uppers (Stripped) 
• Receiver Material: 7075-T6 Aluminum 
• Weight: 9 oz 
   

Details 

The 7075-T6 alloy gives this receiver a good strength-to-weight ratio — noticeably lighter than many forged options while still holding tight tolerances. The black anodized finish is durable and pairs cleanly with standard AR-15 handguards and lowers. Being a stripped upper, it ships without a barrel, bolt carrier group, or charging handle, so budget for those separately if building from scratch.

The Sharps Bros Lightweight Billet Upper draws mostly favorable comments on build quality — owners note it feels solid despite the 9 oz weight, and the black anodizing looks consistent and clean. Accuracy and cycling are reported as reliable when paired with quality components. The price gets pushback from some buyers who compare it to less expensive forged uppers; whether it's worth the premium tends to depend on how much the billet aesthetics matter to the builder. A small number of users have flagged minor fitment issues with specific lower receivers or accessories, so confirming compatibility before ordering is worth doing.