Does the Brownells Brn-Proto® Receiver Set work with the FN America FN FN15/AR 20" Rifle?
Lower Receiver
Brownells Brn-Proto® Receiver Set
from $314.99
Upper Receiver
FN America FN FN15/AR 20" Rifle
from $809.00
Brownells lower and FN America upper compatibility
Yes, they fit
The Brownells Brn-Proto® Receiver Set works with the FN America FN FN15/AR 20" Rifle. 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 Brownells lower and FN America upper
Backed by tens of thousands of qualified builds that have both a lower and an upper.
Share of builds with the FN America FN FN15/AR 20" Rifle and any lower
- This pairBrownells Brn-Proto® Receiver Set9%
Brownells Brn-Proto® Receiver Set
Not in enough builds yet to report.
FN America FN FN15/AR 20" Rifle
- Of upper picks
- 0.1%
- Median paid
- $809
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 FN America upper
The part builders pick most often in each slot alongside these two, checked against both. Parts that conflict are left out.
Pistol Grip
Charging Handle
Bolt Carrier Group
Handguard
Midwest Industries G4 12.625" M-LOK
Fits both
Buffer Tube Assembly
Brownells Brn-Proto® Receiver vs FN America FN FN15/AR 20": specs and prices
| Brownells Brn-Proto® | FN America FN FN15/AR 20" | |
|---|---|---|
| Best price | $314.99 at Brownells | $809.00 at Brownells |
| Stores | 0 of 1 in stock | 0 of 2 in stock |
| Assembly | Set | Complete |
| Platform | AR-15 | AR-15 |
| Caliber | 5.56 NATO | 5.56 NATO |
| Finish | Hardcoat Anodized | n/a |
| Color | Gray | n/a |
| Gas System Length | n/a | Rifle |
| Length | n/a | 20 |
Both for $1123.99 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
- Brownells Brn-Proto® Receiver Set: lowest $314.99 on Aug 29, highest $314.99 on Aug 29 over the last 90 days.
- FN America FN FN15/AR 20" Rifle: lowest $809.00 on Jul 5, highest $809.00 on Jul 5 over the last 90 days.
Upper Receivers most paired with Brownells lowers
The Brownells Brn-Proto® Receiver Set 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-Proto® Receiver Set are listed.
Brownells Brn-180 Gen 2
Fits, check noteCheck fit
Lower Receivers frequently paired with the FN America FN FN15/AR 20" Rifle
Most picked next to it in real builds. Only parts our rules say fit the FN America FN FN15/AR 20" Rifle are listed.
