Does the Spike's Tactical Flat Top Upper w/ work with the Spike's Tactical Spikes Tactical 5.5"?

Upper Receiver
Spike's Tactical Flat Top Upper w/ Ejection Port Door
from $103.50

Barrel
Spike's Tactical Spikes Tactical 5.5" 9mm Nitride 1:10
Spike's Tactical upper and Spike's Tactical barrel compatibility
Yes, they fit
The Spike's Tactical Flat Top Upper w/ Ejection Port works with the Spike's Tactical Spikes Tactical 5.5" 9mm. Our compatibility rules found no conflict between them.
This exact setup is in a real GunPartPicker build.
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 Spike's Tactical upper and Spike's Tactical barrel
Backed by thousands of qualified builds that have both an upper and a barrel.
Share of builds with the Spike's Tactical Flat Top Upper w/ and any barrel
- This pairSpike's Tactical Spikes Tactical 5.5" 9mm3%
Share of builds with the Spike's Tactical Spikes Tactical 5.5" and any upper
- Bravo Company Mfg w/ Laser T-MarkingsDoes not fit22%
- This pairSpike's Tactical Flat Top Upper w/ Ejection Port11%
Spike's Tactical Flat Top Upper w/
- Of upper picks
- 0.3%
- Median paid
- $104
Spike's Tactical Spikes Tactical 5.5"
- Of barrel picks
- 0.2%
- Median paid
- $130
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 Spike's Tactical upper and Spike's Tactical barrel
The part builders pick most often in each slot alongside these two, checked against both. Parts that conflict are left out.
Lower Receiver

Spike's Tactical Spider 9mm Lower
Fits both
Charging Handle

Aero Precision Breach Small Levers
Fits both
Stock & Brace
Handguard

Midwest Industries SIG MPX M-LOK
Fits both
Pistol Grip
Gas Block
Spike's Tactical Flat Top vs Spike's Tactical Spikes: specs and prices
| Spike's Tactical Flat Top | Spike's Tactical Spikes | |
|---|---|---|
| Best price | $103.50 at BattleHawk Armory | n/a |
| Stores | 3 of 4 in stock | n/a |
| Assembly | Stripped | n/a |
| Platform | AR-9 | n/a |
| Caliber | 9mm | 9mm |
| Receiver Type | Flat Top | n/a |
| Gas System | n/a | Blowback |
| Length | n/a | 5.5 |
| Twist | n/a | 1:10 |
| Contour | n/a | Tapered |
| Thread | n/a | 1/2x28 |
| Weight | n/a | 10 |
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
- Spike's Tactical Flat Top Upper w/: lowest $103.50 on Jul 11, highest $112.99 on Jul 6 over the last 90 days.
Barrels 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.
Upper Receivers frequently paired with the Spike's Tactical Spikes Tactical 5.5"
Most picked next to it in real builds. Only parts our rules say fit the Spike's Tactical Spikes Tactical 5.5" are listed.
















