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Yankee Hill Machine
Overview
The Yankee Hill Machine .223 Rem/5.56 Billet Upper Receiver is a stripped upper designed specifically for the AR-15 platform, crafted from high-quality billet aluminum. This receiver type offers enhanced precision and a sleek aesthetic, making it a solid choice for builders looking to create a lightweight and durable upper. Commonly found in builds utilizing a rifle gas system, this upper is particularly suited for those chambered in 5.56 NATO.
Yankee Hill Machine .223 Rem/5.56 Billet Upper Receiver, Hardcoat Anodized Matte Black - 110-BILLET
Prices checked
Yankee Hill Machine .223 Rem/5.56 Billet Upper Receiver, Hardcoat Anodized Matte Black - 110-BILLET ranks #25 of the 825 upper receivers builders have added on GunPartPicker so far in November 2026, behind the Bravo Company BCM® MK2 Standard 11.5" Carbine Complete Upper Receiver Group w/ RAIDER-M10 Handguard, with about 1 in every 143 upper receivers added to builds. Down from #12 in October. Builds with this upper receiver are nearly all chambered in 5.56 NATO, split between carbine-length (40%) and mid-length (36%) gas systems, and nearly all AR-15.
It was hard to find in October 2026, in stock on only 9 of the 21 days we checked, and today only Optics Planet has it in stock. Prices barely moved in October 2026, holding around $199.75, with no real sale all month. Buying today, the lowest price is $199.75 at Optics Planet, which matches the best price we saw in October.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 37 retailers
We ranked every upper receiver by how often it shows up in real builds on GunPartPicker.
Read the guide: Most Popular AR-15 Upper Receivers →Check it against the live catalog:
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Aggregated and anonymized data showing how builders use this product
Builds in the community that include the Yankee Hill Machine .223 Rem/5.56 Billet Upper Receiver, Hardcoat Anodized Matte Black - 110-BILLET
| Build | Parts | Total |
|---|---|---|
 | 24 | $1735.69 |
 | 11 | $1293.54 |
| 23 | $2452.93 |
 | 20 | $1885.04 |
 | 13 | $2178.70 |
 | 11 | $1709.97 |
 | 25 | $3359.63 |
 | 13 | $1276.01 |
 | 25 | $2284.71 |
| 10 | $902.97 |
2 global ratings
Top reviews
YHMs billet upper has cleaner edges and a more refined profile than a typical forged upper. Matte hardcoat anodize is dark and consistent. M4 feed ramps are cut. The takedown pin lugs are reinforced versus a basic forging. Worth the cost for a custom looking build.
Yankee Hill Machine billet upper has quality forging and consistent anodize within the receiver. Side by side with an older YHM upper shows slight tone differences between production batches. Function is solid, fit to a YHM lower has zero play.
