Yankee Hill Machine YHM Flat Top Stripped Upper Receiver 5.56 NATO

Description

The Yankee Hill Machine flat-top A3 stripped upper receiver is a forged 7075-T6 aluminum component intended for AR-15 platform assemblies. Machined in-house and hardcoat anodized matte black, it includes M4-style feed ramps and “T” markings. The receiver’s interior is treated with a dry-film lubricant for improved initial operation and wear resistance. This listing is for the stripped upper receiver only and does not include the forward assist or dust cover assemblies.

Key Specifications

• Made from 7075-T6 forged aluminum.
• Finish is hardcoat matte black anodize to military specifications or better.
• Caliber compatibility: .223 Rem / 5.56x45mm NATO.
• Compatible with Mil-Spec AR-15 lower receivers.
• Features M4-style feed ramps and “T” markings.
• Internal coating: dry-film lubricant.
• Accepts standard upper receiver parts, but forward assist and dust cover assemblies are not included.
• Dimensions are listed as 2.80 x 5.20 x 13.25 inches.
• Weight listed as 0.5 (unit not specified in source data).
• Requires additional components to complete: charging handle, barrel, handguard, gas block, gas tube, muzzle device and BCG are not included.

This stripped upper provides a durable, mil-spec-compatible foundation for custom AR-15 builds and upgrades. Its forged 7075-T6 construction and hardcoat anodized finish make it suitable for builders who prioritize long-term service life and reliable fitment with standard components.