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Yankee Hill Machine
Overview
The Yankee Hill Machine .223 Rem/5.56 Billet Lower Receiver is a stripped lower designed for the AR-15 platform, made from high-quality billet aluminum and finished with a hardcoat anodized matte black for enhanced durability. It features a standard trigger pin size of .154, making it compatible with a wide range of triggers. This lower is well-suited for builds utilizing a mid-length gas system and chambered in 5.56 NATO, allowing for a smooth and reliable shooting experience.
Yankee Hill Machine .223 Rem/5.56 Billet Lower Receiver, Hardcoat Anodized Matte Black - 125-BILLET
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Yankee Hill Machine .223 Rem/5.56 Billet Lower Receiver, Hardcoat Anodized Matte Black - 125-BILLET ranked #37 of the 507 lower receivers builders added on GunPartPicker in August 2026, behind the PSA GEN3 PA10 Forged Complete MOE EPT SBA4 .308 Lower With Over Molded Grip, with about 1 in every 250 lower receivers added to builds. Up from #39 in July. Builds with this lower receiver are mostly chambered in 5.56 NATO (93%), split between mid-length (46%) and carbine-length (27%) gas systems, and nearly all AR-15.
It was in stock most days in August 2026, and today 3 of the 4 retailers we track have it in stock. Prices barely moved in August 2026, holding around $251.09, so there haven't been real sales lately. Buying today, the lowest price is $245.75 at BattleHawk Armory, which matches the best price we saw in August.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 35 retailers
We ranked every lower receiver by how often it shows up in real builds on GunPartPicker.
Read the guide: AR-15 Lower Receiver Trends →Check it against the live catalog:
The part most often added in each category by the 164 builds that include this one
Geissele Automatics AR-15 SSA-E X Lightning Bow Trigger
Wilson Combat AR-15 Starburst Gunfighter Pistol Grip Black
Phase 5 Tactical AR-15 90 Degree Ambi Safety Selector Black
Strike Industries Ambidextrous Magazine Release, Black - ARAMBIMRBK
Yankee Hill Machine AR-15 Billet Upper Receiver - Stripped
CMMG AR-15 HD Pivot and Takedown Pin Parts KIT - 55AFF3B
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 Lower Receiver, Hardcoat Anodized Matte Black - 125-BILLET
| Build | Parts | Total |
|---|---|---|
 | 13 | $1195.67 |
 | 12 | $1252.45 |
| 16 | $1326.16 |
 | 23 | $1734.70 |
 | 17 | $871.86 |
 | 25 | $2279.41 |
 | 22 | $1971.36 |
 | 20 | $1229.63 |
 | 24 | $3578.23 |
 | 14 | $967.26 |
| 17 | $871.86 |
 | 28 | $2204.01 |
1 global rating
Top reviews
YHM billet lower with hardcoat anodize, finish is consistent across the whole receiver. lines up perfect with a YHM upper, takedown pins slip without play. integrated trigger guard saves a build step
