Does the Ke Arms Ke-15 Forged 5.56mm work with the Yankee Hill Machine A3?

Lower Receiver
Ke Arms Ke-15 Forged 5.56mm
from $196.99

Upper Receiver
Yankee Hill Machine A3
from $121.75
KE Arms lower and Yankee Hill Machine upper compatibility
Yes, they fit
The Ke Arms Ke-15 Forged 5.56mm works with the Yankee Hill Machine A3. Our compatibility rules found no conflict between them.
This exact setup has been built more than once on GunPartPicker.
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 KE Arms lower and Yankee Hill Machine upper
Backed by tens of thousands of qualified builds that have both a lower and an upper.
Share of builds with the Ke Arms Ke-15 Forged 5.56mm and any upper
- This pairYankee Hill Machine A37%
Share of builds with the Yankee Hill Machine A3 and any lower
- This pairKe Arms Ke-15 Forged 5.56mm1%
Ke Arms Ke-15 Forged 5.56mm
- Of lower picks
- 0.4%
- Median paid
- $197
Yankee Hill Machine A3
- Of upper picks
- 2.1%
- Median paid
- $122
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 KE Arms lower and Yankee Hill Machine upper
The part builders pick most often in each slot alongside these two, checked against both. Parts that conflict are left out.
Charging Handle

Aero Precision Breach Small Levers
Fits both
Pistol Grip
Trigger
Stock & Brace
Gas Block
Ke Arms Ke-15 Forged 5.56mm vs Yankee Hill Machine A3: specs and prices
| Ke Arms Ke-15 Forged 5.56mm | Yankee Hill Machine A3 | |
|---|---|---|
| Best price | $196.99 at KY Gun Company | $121.75 at BattleHawk Armory |
| Stores | 0 of 2 in stock | 3 of 3 in stock |
| Assembly | Complete | Complete |
| Platform | AR-15 | AR-15 |
| Caliber | 5.56 NATO | n/a |
| Finish | Hardcoat Anodized | n/a |
| Color | Black | n/a |
| Receiver Type | n/a | A3 |
Both for $318.74 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.
Price history, last 90 days
- Ke Arms Ke-15 Forged 5.56mm: lowest $196.99 on Jul 5, highest $299.95 on Aug 30 over the last 90 days.
- Yankee Hill Machine A3: lowest $121.75 on Jul 11, highest $148.75 on Sep 24 over the last 90 days.
Upper Receivers frequently paired with the Ke Arms Ke-15 Forged 5.56mm
Most picked next to it in real builds. Only parts our rules say fit the Ke Arms Ke-15 Forged 5.56mm are listed.
Lower Receivers frequently paired with the Yankee Hill Machine A3
Most picked next to it in real builds. Only parts our rules say fit the Yankee Hill Machine A3 are listed.
















