Yankee Hill Machine .223 Rem/5.56 Flat Top Stripped Upper Receiver, Hardcoat Anodized Matte Black - 110
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Yankee Hill Machine
Overview
The Yankee Hill Machine .223 Rem/5.56 Flat Top Stripped Upper Receiver is an essential component for any AR-15 builder looking to create a lightweight, versatile platform. Made from 7075-T6 aluminum, this flat top receiver provides a robust foundation for your upper assembly, allowing for the attachment of various optics and accessories. It’s designed specifically for the 5.56 NATO caliber and is frequently used in builds that feature a rifle-length gas system, making it a popular choice for precision and reliability in various shooting applications.
Specifications
Yankee Hill Machine .223 Rem/5.56 Flat Top Stripped Upper Receiver, Hardcoat Anodized Matte Black - 110
Available Merchants(4)
Prices checked
Price Alert
November 2026 so far on GunPartPicker
Yankee Hill Machine .223 Rem/5.56 Flat Top Stripped Upper Receiver, Hardcoat Anodized Matte Black - 110 ranks #16 of the 817 upper receivers builders have added on GunPartPicker so far in November 2026, behind the Daniel Defense 14.5" 5.56 M4A1 Carbine 1:7 AR-15 Complete Upper - FDE - 23-004-13150, with about 1 in every 111 upper receivers added to builds. Down from #13 in October. Builds with this upper receiver are nearly all chambered in 5.56 NATO, split between carbine-length (42%) and mid-length (32%) gas systems, and nearly all AR-15.
Availability is good: it was in stock at one retailer or another nearly every time we checked in October 2026, and today all 4 retailers we track have it in stock. It dipped to $97 at BattleHawk Armory for a stretch in October 2026, well under its usual $108.75 to $121.49, so sales do come around. Buying today, the lowest price is $97 at BattleHawk Armory, which matches the best price we saw in October.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 37 retailers
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Frequently Built With
The part most often added in each category by the builds that include this one
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WMD Guns AR-15 Gas Tube Nitromet Mid-Length
Build Configuration Breakdown
Aggregated and anonymized data showing how builders use this product
Gas SystemBased on real build data showing which gas system lengths builders use with this product.
Builds Featuring This Part
See all builds →Builds in the community that include the Yankee Hill Machine .223 Rem/5.56 Flat Top Stripped Upper Receiver, Hardcoat Anodized Matte Black - 110
| Build | Parts | Total |
|---|---|---|
| Smith & Wesson 16" 5.56 NATO AR-15 Build | 16 | $6064.52 |
 | 21 | $1095.15 |
 | 24 | $1643.42 |
 | 28 | $3493.73 |
 | 25 | $4366.55 |
 | 12 | $504.93 |
| 17 | $1067.63 |
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