Does the New Frontier Armory C9 9mm work with the Brownells Brn-180 Gen 2?
New Frontier Armory lower and Brownells upper compatibility
Yes, they fit
The New Frontier Armory C9 9mm works with the Brownells Brn-180 Gen 2. 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 New Frontier Armory lower and Brownells upper
Backed by tens of thousands of qualified builds that have both a lower and an upper.
Share of builds with the Brownells Brn-180 Gen 2 and any lower
- This pairNew Frontier Armory C9 9mm33%
New Frontier Armory C9 9mm
Not in enough builds yet to report.
Brownells Brn-180 Gen 2
- 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 New Frontier Armory lower and Brownells upper
The part builders pick most often in each slot alongside these two, checked against both. Parts that conflict are left out.
New Frontier Armory C9 9mm vs Brownells Brn-180 Gen 2: specs and prices
| New Frontier Armory C9 9mm | Brownells Brn-180 Gen 2 | |
|---|---|---|
| Best price | n/a | n/a |
| Stores | n/a | n/a |
| Assembly | Complete | Complete |
| Platform | AR-9 | AR-9 |
| Caliber | 9mm | 9mm |
| Trigger Pin | .154 | n/a |
| Finish | Hardcoat Anodized | n/a |
| Length | n/a | 10.5 |
| Weight | 2.45 | n/a |
Upper Receivers frequently paired with the New Frontier Armory C9 9mm
Most picked next to it in real builds. Only parts our rules say fit the New Frontier Armory C9 9mm are listed.
Lower Receivers most paired with Brownells uppers
The Brownells Brn-180 Gen 2 is not in enough builds yet, so these are the most picked next to any Brownells upper. Only parts our rules say fit the Brownells Brn-180 Gen 2 are listed.


LMT MARS-LS PDW
Fits, check noteCheck fit
Wilson Combat Forged
Fits, check noteCheck fit
Palmetto State Armory BLEM PSA Classic Stealth Lower
Fits, check noteCheck fit
Brownells Stripped Lower 5.56x45mm
Fits, check noteCheck fit
Aero Precision M4E1 Stripped
Fits, check noteCheck fit







