Yankee Hill Machine | Stripped A3 Upper Receiver | 7075-T6

The Yankee Hill Machine A3 stripped flat-top upper receiver is a forged 7075-T6 aluminum component finished in hardcoat black anodize for build quality and corrosion resistance. It features M4-style feed ramps and “T” markings, and the interior is coated with a dry film lubricant to aid initial assembly. This stripped receiver accepts standard AR-15 upper parts and Mil-Spec lower receivers, making it suitable for custom AR-15 builds and range/competition configurations.

Product Specifications

• The brand is Yankee Hill Machine.
• The product type is a Stripped A3 upper receiver for the AR-15 platform.
• The receiver is made from 7075-T6 aluminum (forged).
• The finish is black hardcoat anodized.
• The advertised caliber is .223 Rem / 5.56 NATO.
• The upper is designed to accept Mil-Spec lower receivers.
• The feed ramps are M4-style with “T” markings.
• The inside is coated with dry film lubricant.
• The receiver accepts standard upper receiver parts such as dust covers and forward assists (these parts are not included).
• The unit height is listed as 2.8000.
• The unit width is listed as 5.2000.
• The unit length is listed as 13.2500.
• The listed weight is 0.5 (units as provided in source data).
• The UPC is 816701011326.

This stripped upper provides a durable, standards-compatible foundation for a custom AR-15 build. Use it when you need a forged 7075-T6 receiver with M4-style feed ramps and a matte hardcoat finish for consistent fitment with Mil-Spec lowers and commonly available AR components.