Does the Yankee Hill Machine Stripped work with the ZRODelta Forged M4 5.56mm?
Yankee Hill Machine lower and ZRODelta upper compatibility
Yes, they fit
The Yankee Hill Machine Stripped works with the ZRODelta Forged M4 5.56mm. Our compatibility rules found no conflict between them.
No one has built this exact setup yet, but Yankee Hill Machine lowers with ZRODelta 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 Yankee Hill Machine lower and ZRODelta 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 Stripped and any upper
Yankee Hill Machine Stripped
- Of lower picks
- 0.1%
- Median paid
- n/a
ZRODelta Forged M4 5.56mm
Not in enough builds yet to report.
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 ZRODelta upper
The part builders pick most often in each slot alongside these two, checked against both. Parts that conflict are left out.
Barrel
Charging Handle

Aero Precision Breach Small Levers
Fits both
Gas Block
Pistol Grip
Muzzle Device
Yankee Hill Machine Stripped vs ZRODelta Forged M4 5.56mm: specs and prices
| Yankee Hill Machine Stripped | ZRODelta Forged M4 5.56mm | |
|---|---|---|
| Best price | n/a | n/a |
| Stores | n/a | n/a |
| Assembly | Stripped | Stripped |
| Platform | AR-15 | AR-15 |
| Trigger Pin | .154 | n/a |
| Finish | Hardcoat Anodized | n/a |
| Caliber | n/a | 5.56 NATO |
| Receiver Type | n/a | Forged |
Upper Receivers frequently paired with the Yankee Hill Machine Stripped
Most picked next to it in real builds. Only parts our rules say fit the Yankee Hill Machine Stripped are listed.
Lower Receivers most paired with ZRODelta uppers
The ZRODelta Forged M4 5.56mm is not in enough builds yet, so these are the most picked next to any ZRODelta upper. Only parts our rules say fit the ZRODelta Forged M4 5.56mm are listed.



















