Does the Ke Arms Ke-9 Billet Stripped 9mm work with the ZRODelta Zro Delta Forged M4 Stripped?
Lower Receiver
Ke Arms Ke-9 Billet Stripped 9mm
from $219.99
Upper Receiver
ZRODelta Zro Delta Forged M4 Stripped
from $719.99
KE Arms lower and ZRODelta upper compatibility
Yes, they fit
The Ke Arms Ke-9 Billet Stripped 9mm works with the ZRODelta Zro Delta Forged M4 Stripped. Our compatibility rules found no conflict between them.
No one has built this exact setup yet, but KE Arms 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 KE Arms 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 Ke Arms Ke-9 Billet Stripped 9mm and any upper
Share of builds with the ZRODelta Zro Delta Forged M4 Stripped and any lower
Ke Arms Ke-9 Billet Stripped 9mm
- Of lower picks
- 0%
- Median paid
- n/a
ZRODelta Zro Delta Forged M4 Stripped
- Of upper picks
- 0.6%
- Median paid
- $746
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 ZRODelta upper
The part builders pick most often in each slot alongside these two, checked against both. Parts that conflict are left out.
Charging Handle
Fits both
Gas Block
Pistol Grip
Handguard
Fits both
Muzzle Device
Ke Arms Ke-9 Billet Stripped vs ZRODelta Zro Delta Forged M4: specs and prices
| Ke Arms Ke-9 Billet Stripped | ZRODelta Zro Delta Forged M4 | |
|---|---|---|
| Best price | $219.99 at KY Gun Company | $719.99 at Brownells |
| Stores | 0 of 2 in stock | 0 of 1 in stock |
| Assembly | Stripped | Stripped |
| Platform | AR-9 | AR-15 |
| Caliber | 9mm | 5.56 NATO |
| Finish | Hardcoat Anodized | n/a |
| Color | Black | n/a |
| Receiver Type | n/a | Forged |
Both for $939.98 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-9 Billet Stripped 9mm: lowest $219.99 on Jul 5, highest $249.95 on Aug 29 over the last 90 days.
- ZRODelta Zro Delta Forged M4 Stripped: lowest $719.99 on Aug 29, highest $899.99 on Jul 6 over the last 90 days.
Upper Receivers most paired with KE Arms lowers
The Ke Arms Ke-9 Billet Stripped 9mm is not in enough builds yet, so these are the most picked next to any KE Arms lower. Only parts our rules say fit the Ke Arms Ke-9 Billet Stripped 9mm are listed.
Lower Receivers frequently paired with the ZRODelta Zro Delta Forged M4 Stripped
Most picked next to it in real builds. Only parts our rules say fit the ZRODelta Zro Delta Forged M4 Stripped are listed.
