Does the Foxtrot Mike Products FM45 Premium .45 work with the Yankee Hill Machine A3?

Lower Receiver
Foxtrot Mike Products FM45 Premium .45 Acp

Upper Receiver
Yankee Hill Machine A3
from $121.75
Foxtrot Mike Products lower and Yankee Hill Machine upper compatibility
Yes, they fit
The Foxtrot Mike Products FM45 Premium .45 Acp works with the Yankee Hill Machine A3. Our compatibility rules found no conflict between them.
No one has built this exact setup yet, but Foxtrot Mike Products lowers with Yankee Hill Machine uppers are a common pairing.
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 Foxtrot Mike Products 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 Foxtrot Mike Products FM45 Premium .45 and any upper
Share of builds with the Yankee Hill Machine A3 and any lower
Foxtrot Mike Products FM45 Premium .45
- Of lower picks
- 0.1%
- Median paid
- n/a
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 Foxtrot Mike Products 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.
Foxtrot Mike Products FM45 vs Yankee Hill Machine A3: specs and prices
| Foxtrot Mike Products FM45 | Yankee Hill Machine A3 | |
|---|---|---|
| Best price | n/a | $121.75 at BattleHawk Armory |
| Stores | n/a | 3 of 3 in stock |
| Assembly | Complete | Complete |
| Platform | AR-9 | AR-15 |
| Caliber | .45 ACP | n/a |
| Trigger Pin | .154 | n/a |
| Finish | Hardcoat Anodized | n/a |
| Receiver Type | n/a | A3 |
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
- 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 Foxtrot Mike Products FM45 Premium .45
Most picked next to it in real builds. Only parts our rules say fit the Foxtrot Mike Products FM45 Premium .45 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.













