Yankee Hill Machine Lower Receiver Ar15 Assemble Parts Car Stock

The Yankee Hill Machine AR-15 lower receiver assembly with carbine stock is a fully assembled, ready-to-run foundation for your custom build or a home for that spare upper you've got lying around. YHM machines these lowers entirely in-house from 7075-T6 aircraft-grade aluminum, so you're getting quality control and durability that cuts through the noise of import commodity parts. The whole package arrives assembled and configured—bolt it to your upper, load a mag, and you're shooting.

What sets this lower apart starts with the engineering: oversized magazine well chamfers make mag changes faster and smoother, and it accepts all generations of PMAG magazines plus any mil-spec upper receiver. The lower ships with a complete lower parts kit already installed, including a standard A2 pistol grip and a 6-position adjustable commercial carbine stock, so there's no additional assembly or parts hunting needed before you hit the range.

The finish is hardcoat anodized matte black to military spec or better, meaning it'll handle hard use and hold up to corrosion. Whether you're building your first AR, adding to a collection, or just need a spare lower to keep a parts upper functional, this is a solid foundation built with attention to detail and machine quality you can trust.

Key Features

• 100% in-house machined from 7075-T6 aircraft-grade forged aluminum
• Oversized magazine well chamfers for faster, easier mag changes
• Accepts all PMAG generations and mil-spec uppers
• Fully assembled with complete lower parts kit pre-installed
• 6-position adjustable commercial carbine stock
• Standard A2 black pistol grip
• Hardcoat anodized matte black finish to military specifications

Specifications

Material	7075-T6 aircraft-grade aluminum (forged)
Finish	Hardcoat anodized matte black
Carbine Stock	6-position adjustable commercial
Pistol Grip	Standard A2 black
Magazine Compatibility	All generations PMAG, mil-spec magazines
Upper Receiver Compatibility	Mil-spec AR-15 uppers
Condition	Fully assembled, ready to use

Frequently Asked Questions

What uppers will this lower work with?

This lower accepts all mil-spec AR-15 upper receivers, so it's compatible with uppers from pretty much any mainstream manufacturer.

Does it come fully assembled?

Yes. The lower ships with a complete lower parts kit already installed, an adjustable 6-position carbine stock, and a standard A2 pistol grip. You just need to attach your upper receiver and go.

What magazines does it accept?

It accepts all generations of PMAG magazines as well as standard mil-spec magazines, giving you flexibility in your ammunition feeding options.

Why choose 7075-T6 aluminum?

7075-T6 is an aircraft-grade aluminum alloy known for exceptional strength and durability. YHM machines these lowers in-house, so you're getting quality control and precision manufacturing, not mass-produced commodity parts.