Does the Foxtrot Mike Products Hybrid Polymer FM9 work with the Stern Defense Nickel Boron 9mm?
Lower Receiver
Foxtrot Mike Products Hybrid Polymer FM9 AR9
from $235.87
Bolt Carrier Group
Stern Defense Nickel Boron 9mm
from $169.99
Foxtrot Mike Products lower and Stern Defense bolt carrier group compatibility
Yes, they fit
The Foxtrot Mike Products Hybrid Polymer FM9 AR9 works with the Stern Defense Nickel Boron 9mm. Our compatibility rules found no conflict between them.
No one has built this exact setup yet, but Foxtrot Mike Products lowers with Stern Defense bolt carrier groups 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 Stern Defense bolt carrier group
Backed by thousands of qualified builds that have both a lower and a bolt carrier group.
Share of builds with the Stern Defense Nickel Boron 9mm and any lower
Foxtrot Mike Products Hybrid Polymer FM9
- Of lower picks
- 0%
- Median paid
- n/a
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 lower 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
Upper Receiver
Pistol Grip
Handguard
Suppressor
Stock & Brace
Foxtrot Mike Products Hybrid vs Stern Defense Nickel Boron 9mm: specs and prices
| Foxtrot Mike Products Hybrid | Stern Defense Nickel Boron | |
|---|---|---|
| Best price | $235.87 at AR15 Discounts | $169.99 at Optics Planet |
| Stores | 0 of 1 in stock | 3 of 4 in stock |
| Assembly | Complete | n/a |
| Platform | AR-9 | n/a |
| Trigger Pin | .154 | n/a |
| Cartridge | n/a | 9mm |
| Finish | n/a | Nickel Boron |
Both for $405.86 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
- 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 most paired with Foxtrot Mike Products lowers
The Foxtrot Mike Products Hybrid Polymer FM9 is not in enough builds yet, so these are the most picked next to any Foxtrot Mike Products lower. Only parts our rules say fit the Foxtrot Mike Products Hybrid Polymer FM9 are listed.
Lower 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.
