Does the Brownells Brn-180® Stripped Forged work with the Brownells Brn-180 Gen 2?
Brownells lower and Brownells upper compatibility
They fit, with a catch
The Brownells Brn-180® Stripped Forged works with the Brownells Brn-180 Gen 2, with one thing to check: Lower Receiver (5.56 NATO) needs a 9mm magazine well adapter for a PCC/9mm build.
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 Brownells 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® Stripped Forged and any upper
- This pairBrownells Brn-180 Gen 233%
Share of builds with the Brownells Brn-180 Gen 2 and any lower
- This pairBrownells Brn-180® Stripped Forged33%
Brownells Brn-180® Stripped Forged
- Of lower picks
- 0%
- Median paid
- n/a
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 Brownells 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.
Pistol Grip
Stock & Brace
Charging Handle

Timber Creek Outdoors Enforcer Mini Small
Unconfirmed
Handguard
Brownells Brn-180® Stripped vs Brownells Brn-180 Gen 2: specs and prices
| Brownells Brn-180® Stripped | Brownells Brn-180 Gen 2 | |
|---|---|---|
| Best price | n/a | n/a |
| Stores | n/a | n/a |
| Assembly | Stripped | Complete |
| Platform | AR-15 | AR-9 |
| Caliber | 5.56 NATO | 9mm |
| Finish | Hardcoat Anodized | n/a |
| Color | Black | n/a |
| Length | n/a | 10.5 |
Upper Receivers most paired with Brownells lowers
The Brownells Brn-180® Stripped Forged is not in enough builds yet, so these are the most picked next to any Brownells lower. Only parts our rules say fit the Brownells Brn-180® Stripped Forged 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












