Does the Ke Arms Ke-15 Forged 5.56mm work with the Foxtrot Mike Products 9mm Upper 8.5"?
Lower Receiver
Ke Arms Ke-15 Forged 5.56mm
from $196.99
Upper Receiver
Foxtrot Mike Products 9mm Upper 8.5"
KE Arms lower and Foxtrot Mike Products upper compatibility
They fit, with a catch
The Ke Arms Ke-15 Forged 5.56mm works with the Foxtrot Mike Products 9mm Upper 8.5", with one thing to check: Lower Receiver (5.56 NATO) needs a 9mm magazine well adapter for a PCC/9mm build.
No one has built this exact setup yet, but KE Arms lowers with Foxtrot Mike Products 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 Foxtrot Mike Products 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
Share of builds with the Foxtrot Mike Products 9mm Upper 8.5" and any lower
Ke Arms Ke-15 Forged 5.56mm
- Of lower picks
- 0.4%
- Median paid
- $197
Foxtrot Mike Products 9mm Upper 8.5"
- Of upper picks
- 0%
- Median paid
- n/a
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 Foxtrot Mike Products 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
Handguard
TacFire Maximize Your 's Potential
Fits both
Muzzle Device
Gas Block
Pistol Grip
Buffer Tube Assembly
Ke Arms Ke-15 Forged 5.56mm vs Foxtrot Mike Products 9mm: specs and prices
| Ke Arms Ke-15 Forged 5.56mm | Foxtrot Mike Products 9mm | |
|---|---|---|
| Best price | $196.99 at KY Gun Company | n/a |
| Stores | 0 of 2 in stock | n/a |
| Assembly | Complete | Complete |
| Platform | AR-15 | AR-9 |
| Caliber | 5.56 NATO | 9mm |
| Finish | Hardcoat Anodized | n/a |
| Color | Black | n/a |
| Gas System Length | n/a | Blowback |
| Length | n/a | 8.5 |
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.
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 most paired with Foxtrot Mike Products uppers
The Foxtrot Mike Products 9mm Upper 8.5" is not in enough builds yet, so these are the most picked next to any Foxtrot Mike Products upper. Only parts our rules say fit the Foxtrot Mike Products 9mm Upper 8.5" are listed.
