Does the Foxtrot Mike Products FM9 Premium 9mm work with the Spike's Tactical Flat Top Upper w/?
Lower Receiver
Foxtrot Mike Products FM9 Premium 9mm
from $275.00
Upper Receiver
Spike's Tactical Flat Top Upper w/ Ejection Port Door
from $103.50
Foxtrot Mike Products lower and Spike's Tactical upper compatibility
Yes, they fit
The Foxtrot Mike Products FM9 Premium 9mm works with the Spike's Tactical Flat Top Upper w/ Ejection Port. Our compatibility rules found no conflict between them.
This exact setup has been built more than once on GunPartPicker.
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 Spike's Tactical upper
Backed by tens of thousands of qualified builds that have both a lower and an upper.
Share of builds with the Foxtrot Mike Products FM9 Premium 9mm and any upper
- Wilson Combat BilletDoes not fit16%
- Bravo Company Mfg w/ Laser T-MarkingsDoes not fit9%
- Bravo Company Manufacturing 5.56 NATO Mid-LengthDoes not fit9%
- Radical Firearms 5.56 Socom UpperDoes not fit4%
Share of builds with the Spike's Tactical Flat Top Upper w/ and any lower
- This pairFoxtrot Mike Products FM9 Premium 9mm5%
Foxtrot Mike Products FM9 Premium 9mm
- Of lower picks
- 1.3%
- Median paid
- $275
Spike's Tactical Flat Top Upper w/
- Of upper picks
- 0.3%
- Median paid
- $104
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 Spike's Tactical upper
The part builders pick most often in each slot alongside these two, checked against both. Parts that conflict are left out.
Stock & Brace
Charging Handle
Radian Raptor & Talon Safety Selector Combo
Unconfirmed
Bolt Carrier Group
Fits both
Foxtrot Mike Products FM9 vs Spike's Tactical Flat Top: specs and prices
| Foxtrot Mike Products FM9 | Spike's Tactical Flat Top | |
|---|---|---|
| Best price | $275.00 at Primary Arms | $103.50 at BattleHawk Armory |
| Stores | 0 of 1 in stock | 3 of 4 in stock |
| Assembly | Complete | Stripped |
| Platform | AR-9 | AR-9 |
| Caliber | 9mm | 9mm |
| Trigger Pin | .154 | n/a |
| Finish | Hardcoat Anodized | n/a |
| Receiver Type | n/a | Flat Top |
Both for $378.50 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 FM9 Premium 9mm: lowest $275.00 on Jul 7, highest $275.00 on Jul 7 over the last 90 days.
- Spike's Tactical Flat Top Upper w/: lowest $103.50 on Jul 11, highest $112.99 on Jul 6 over the last 90 days.
Upper Receivers frequently paired with the Foxtrot Mike Products FM9 Premium 9mm
Most picked next to it in real builds. Only parts our rules say fit the Foxtrot Mike Products FM9 Premium 9mm are listed.
Lower Receivers frequently paired with the Spike's Tactical Flat Top Upper w/
Most picked next to it in real builds. Only parts our rules say fit the Spike's Tactical Flat Top Upper w/ are listed.
