Does the Yankee Hill Machine .223 Rem/5.56 Billet work with the Aero Precision 5.56 Mid-Length Barreled?

Lower Receiver
Yankee Hill Machine .223 Rem/5.56 Billet
from $245.75

Upper Receiver
Aero Precision 5.56 Mid-Length Barreled Upper
from $354.99
Yankee Hill Machine lower and Aero Precision upper compatibility
Yes, they fit
The Yankee Hill Machine .223 Rem/5.56 Billet works with the Aero Precision 5.56 Mid-Length Barreled Upper. Our compatibility rules found no conflict between them.
This exact setup is in a real GunPartPicker build.
Counted from real GunPartPicker builds: parts lists people put together while planning to buy.
Checked by the same rules the AR builder runs on every part you add: caliber, frame size, receiver pattern, thread pitch and gas length.
Fit is judged from the specs retailers list, which can be missing or wrong. Confirm with the manufacturer before you buy, and have a qualified gunsmith check any build before you fire it.
How often builders pair the Yankee Hill Machine lower and Aero Precision upper
Backed by tens of thousands of qualified builds that have both a lower and an upper.
Share of builds with the Yankee Hill Machine .223 Rem/5.56 Billet and any upper
Share of builds with the Aero Precision 5.56 Mid-Length Barreled and any lower
- This pairYankee Hill Machine .223 Rem/5.56 Billet17%
Yankee Hill Machine .223 Rem/5.56 Billet
- Of lower picks
- 0.6%
- Median paid
- $246
Aero Precision 5.56 Mid-Length Barreled
- Of upper picks
- 0%
- Median paid
- $355
How we count ⌄
These shares come from GunPartPicker's build data: real parts lists people put together while planning a purchase, not sales or surveys. A build counts a part only when it is the final pick for its slot, so parts that were swapped out never count. Fit never comes from these numbers; it comes from our compatibility rules alone.
Frequently built with the Yankee Hill Machine lower and Aero Precision upper
The part builders pick most often in each slot alongside these two, checked against both. Parts that conflict are left out.
Pistol Grip
Charging Handle

Aero Precision Breach Small Levers
Fits both
Gas Block
Barrel
Stock & Brace
Yankee Hill Machine .223 vs Aero Precision 5.56 Mid-Length: specs and prices
| Yankee Hill Machine .223 | Aero Precision 5.56 | |
|---|---|---|
| Best price | $251.09 at Guns.com | $354.99 at BattleHawk Armory |
| Stores | 1 of 4 in stock | 0 of 4 in stock |
| Assembly | Stripped | Complete |
| Platform | AR-15 | AR-15 |
| Caliber | 5.56 NATO | 5.56 NATO |
| Trigger Pin | .154 | n/a |
| Finish | Hardcoat Anodized | n/a |
| Color | Black | n/a |
| Gas System Length | n/a | Mid-Length |
| Receiver Type | n/a | A4 |
| Length | n/a | 16 |
Both for $606.08 at today's best prices.
Today's best prices and 90 day price history
Every store we track for each part, cheapest in stock first. Prices are checked through the day.
Yankee Hill Machine .223 Rem/5.56 Billet
Price history, last 90 days
- Yankee Hill Machine .223 Rem/5.56 Billet: lowest $245.75 on Jul 11, highest $310.75 on Jul 21 over the last 90 days.
- Aero Precision 5.56 Mid-Length Barreled: lowest $354.99 on Jul 5, highest $414.99 on Jul 7 over the last 90 days.
Upper Receivers frequently paired with the Yankee Hill Machine .223 Rem/5.56 Billet
Most picked next to it in real builds. Only parts our rules say fit the Yankee Hill Machine .223 Rem/5.56 Billet are listed.
Lower Receivers frequently paired with the Aero Precision 5.56 Mid-Length Barreled
Most picked next to it in real builds. Only parts our rules say fit the Aero Precision 5.56 Mid-Length Barreled are listed.

















