Does the Foxtrot Mike Products FM Products MIKE-9 work with the Stern Defense Nickel Boron 9mm?

Upper Receiver
Foxtrot Mike Products FM Products MIKE-9 9mm Front Charging
from $379.00

Bolt Carrier Group
Stern Defense Nickel Boron 9mm
from $169.99
Foxtrot Mike Products upper and Stern Defense bolt carrier group compatibility
Yes, they fit
The Foxtrot Mike Products FM Products MIKE-9 9mm works with the Stern Defense Nickel Boron 9mm. Our compatibility rules found no conflict between them.
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 upper and Stern Defense bolt carrier group
Backed by thousands of qualified builds that have both an upper and a bolt carrier group.
Share of builds with the Foxtrot Mike Products FM Products MIKE-9 and any bolt carrier group
- FailZero AR925%
- Cryptic Coatings 5.56 NATODoes not fit13%
- Bravo CompanyDoes not fit13%
Share of builds with the Stern Defense Nickel Boron 9mm and any upper
Foxtrot Mike Products FM Products MIKE-9
- Of upper picks
- 0.1%
- Median paid
- $379
Stern Defense Nickel Boron 9mm
- Of bolt carrier group picks
- 0.2%
- Median paid
- $170
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 upper and Stern Defense bolt carrier group
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
Lower Receiver
Pistol Grip
Stock & Brace
Suppressor
Foxtrot Mike Products FM vs Stern Defense Nickel Boron 9mm: specs and prices
| Foxtrot Mike Products FM | Stern Defense Nickel Boron | |
|---|---|---|
| Best price | $379.00 at Optics Planet | $169.99 at Optics Planet |
| Stores | 2 of 2 in stock | 3 of 4 in stock |
| Assembly | Complete | n/a |
| Platform | AR-9 | n/a |
| Caliber | 9mm | n/a |
| Length | 10 | n/a |
| Cartridge | n/a | 9mm |
| Finish | n/a | Nickel Boron |
Both for $548.99 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
- Foxtrot Mike Products FM Products MIKE-9: lowest $379.00 on Jul 5, highest $399.00 on Jul 27 over the last 90 days.
- Stern Defense Nickel Boron 9mm: lowest $144.49 on Jul 5, highest $170.99 on Jul 24 over the last 90 days.
Bolt Carrier Groups frequently paired with the Foxtrot Mike Products FM Products MIKE-9
Most picked next to it in real builds. Only parts our rules say fit the Foxtrot Mike Products FM Products MIKE-9 are listed.
Upper Receivers frequently paired with the Stern Defense Nickel Boron 9mm
Most picked next to it in real builds. Only parts our rules say fit the Stern Defense Nickel Boron 9mm are listed.















