Does the Brownells Brn-Proto® Receiver Set work with the Aero Precision M4E1-T .300 AAC Blackout?
Lower Receiver
Brownells Brn-Proto® Receiver Set
from $314.99
Upper Receiver
Aero Precision M4E1-T .300 AAC Blackout 8in Pistol Length
from $585.00
Brownells lower and Aero Precision upper compatibility
Yes, they fit
The Brownells Brn-Proto® Receiver Set works with the Aero Precision M4E1-T .300 AAC Blackout 8in. Our compatibility rules found no conflict between them.
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 Aero Precision upper
Backed by tens of thousands of qualified builds that have both a lower and an upper.
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 Aero Precision upper
The part builders pick most often in each slot alongside these two, checked against both. Parts that conflict are left out.
Charging Handle
Fits both
Pistol Grip
Bolt Carrier Group
Fits both
Stock & Brace
Brownells Brn-Proto® Receiver vs Aero Precision M4E1-T .300 AAC: specs and prices
| Brownells Brn-Proto® | Aero Precision M4E1-T .300 | |
|---|---|---|
| Best price | $314.99 at Brownells | n/a |
| Stores | 0 of 1 in stock | n/a |
| Assembly | Set | Complete |
| Platform | AR-15 | AR-15 |
| Caliber | 5.56 NATO | 300 Blackout |
| Finish | Hardcoat Anodized | n/a |
| Color | Gray | n/a |
| Gas System Length | n/a | Pistol |
| Receiver Type | n/a | M4E1 |
| Length | n/a | 8 |
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.
Brownells Brn-Proto® Receiver Set
- Brownellsout of stock$314.99
Aero Precision M4E1-T .300 AAC Blackout 8in
No store lists it today.
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.
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 most paired with Aero Precision uppers
The Aero Precision M4E1-T .300 AAC Blackout is not in enough builds yet, so these are the most picked next to any Aero Precision upper. Only parts our rules say fit the Aero Precision M4E1-T .300 AAC Blackout are listed.
