Does the Aero Precision Stripped M4E1 work with the Primary Weapon Systems Brownells?
Lower Receiver
Aero Precision Stripped M4E1
from $154.99
Upper Receiver
Primary Weapon Systems Brownells Exclusive MK1 Alpha Lt 223
from $1260.99
Aero Precision lower and Primary Weapon Systems upper compatibility
Yes, they fit
The Aero Precision Stripped M4E1 works with the Primary Weapon Systems Brownells Exclusive MK1. Our compatibility rules found no conflict between them.
No one has built this exact setup yet, but Aero Precision lowers with Primary Weapon Systems uppers are a common pairing.
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 Aero Precision lower and Primary Weapon Systems upper
Backed by tens of thousands of qualified builds that have both a lower and an upper.
Share of builds with the Aero Precision Stripped M4E1 and any upper
Share of builds with the Primary Weapon Systems Brownells and any lower
Aero Precision Stripped M4E1
- Of lower picks
- 7.2%
- Median paid
- $155
Primary Weapon Systems Brownells
- Of upper picks
- 0%
- Median paid
- $1327
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 Aero Precision lower and Primary Weapon Systems 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
Aero Precision Breach Small Levers
Fits both
Bolt Carrier Group
Aero Precision 5.56 BCG W/C158 Bolt
Unconfirmed
Stock & Brace
Gas Block
Barrel
Aero Precision Stripped M4E1 vs Primary Weapon Systems: specs and prices
| Aero Precision Stripped M4E1 | Primary Weapon Systems | |
|---|---|---|
| Best price | $154.99 at Classic Firearms | $1260.99 at Palmetto State Armory |
| Stores | 0 of 3 in stock | 2 of 2 in stock |
| Assembly | Parts Kit | Complete |
| Platform | AR-10 | AR-15 |
| Trigger Pin | .154 | n/a |
| Finish | Hardcoat Anodized | n/a |
| Caliber | n/a | .223 Wylde |
| Length | n/a | 14.5 |
| Weight | 8.35 | n/a |
Both for $1415.98 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
- Aero Precision Stripped M4E1: lowest $154.99 on Jul 5, highest $154.99 on Jul 5 over the last 90 days.
- Primary Weapon Systems Brownells: lowest $999.99 on Aug 19, highest $1349.00 on Jul 6 over the last 90 days.
Upper Receivers frequently paired with the Aero Precision Stripped M4E1
Most picked next to it in real builds. Only parts our rules say fit the Aero Precision Stripped M4E1 are listed.
Lower Receivers frequently paired with the Primary Weapon Systems Brownells
Most picked next to it in real builds. Only parts our rules say fit the Primary Weapon Systems Brownells are listed.
