Does the Aero Precision Stripped M4E1 work with the CMMG MK4 .300BLK Banshee Upper Group?

Lower Receiver
Aero Precision Stripped M4E1
from $154.99

Upper Receiver
CMMG MK4 .300BLK Banshee Upper Group Receiver 12.5in
from $799.99
Aero Precision lower and CMMG upper compatibility
Yes, they fit
The Aero Precision Stripped M4E1 works with the CMMG MK4 .300BLK Banshee Upper Group Receiver. Our compatibility rules found no conflict between them.
No one has built this exact setup yet, but Aero Precision lowers with CMMG 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 CMMG 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
Aero Precision Stripped M4E1
- Of lower picks
- 7.2%
- Median paid
- $155
CMMG MK4 .300BLK Banshee Upper Group
Not in enough builds yet to report.
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 CMMG 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 CMMG MK4 .300BLK Banshee Upper: specs and prices
| Aero Precision Stripped M4E1 | CMMG MK4 .300BLK Banshee | |
|---|---|---|
| Best price | $154.99 at Classic Firearms | $799.99 at Optics Planet |
| Stores | 0 of 3 in stock | 0 of 1 in stock |
| Assembly | Parts Kit | Complete |
| Platform | AR-10 | AR-15 |
| Trigger Pin | .154 | n/a |
| Finish | Hardcoat Anodized | n/a |
| Caliber | n/a | 300 Blackout |
| Length | n/a | 12.5 |
| Weight | 8.35 | n/a |
Both for $954.98 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.
- CMMG MK4 .300BLK Banshee Upper Group: lowest $799.99 on Jul 5, highest $799.99 on Jul 5 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 most paired with CMMG uppers
The CMMG MK4 .300BLK Banshee Upper Group is not in enough builds yet, so these are the most picked next to any CMMG upper. Only parts our rules say fit the CMMG MK4 .300BLK Banshee Upper Group are listed.


















