Does the Aero Precision M4E1 Threaded Upper work with the Rosco Manufacturing Bloodline 5.56 M4?
Upper Receiver
Aero Precision M4E1 Threaded Upper
from $369.99
Barrel
Rosco Manufacturing Bloodline 5.56 M4 Carbine
from $131.49
Aero Precision upper and Rosco Manufacturing barrel compatibility
They fit, with a catch
The Aero Precision M4E1 Threaded Upper works with the Rosco Manufacturing Bloodline 5.56 M4 Carbine, with one thing to check: Barrel thread pitch (1/2x28) does not match Upper Receiver thread pitch (5/8x24).
No one has built this exact setup yet, but Aero Precision uppers with Rosco Manufacturing barrels 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 upper and Rosco Manufacturing barrel
Backed by thousands of qualified builds that have both an upper and a barrel.
Share of builds with the Rosco Manufacturing Bloodline 5.56 M4 and any upper
Aero Precision M4E1 Threaded Upper
Not in enough builds yet to report.
Rosco Manufacturing Bloodline 5.56 M4
- Of barrel picks
- 6.6%
- Median paid
- $134
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 upper and Rosco Manufacturing barrel
The part builders pick most often in each slot alongside these two, checked against both. Parts that conflict are left out.
Charging Handle
Aero Precision Breach Small Levers
Fits both
Gas Block
Bolt Carrier Group
Fits both
Lower Receiver
Unconfirmed
Handguard
Pistol Grip
Stock & Brace
Muzzle Device
Fortis Control 300 Muzzle Brake 5/8x24
Fits, check note
Aero Precision M4E1 Threaded vs Rosco Manufacturing Bloodline: specs and prices
| Aero Precision M4E1 Threaded | Rosco Manufacturing | |
|---|---|---|
| Best price | n/a | $131.49 at Ammunition Depot |
| Stores | n/a | 7 of 8 in stock |
| Assembly | Complete | n/a |
| Platform | AR-15 | n/a |
| Gas System Length | Pistol | n/a |
| Caliber | 300 Blackout | AR-15 |
| Receiver Type | M4E1 | n/a |
| Length | 10 | Standard |
| Gas System | n/a | Carbine |
| Twist | n/a | 1:7 |
| Contour | n/a | M4 |
| Thread | n/a | 1/2x28 |
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
- Rosco Manufacturing Bloodline 5.56 M4: lowest $131.49 on Jul 5, highest $162.99 on Aug 4 over the last 90 days.
Barrels most paired with Aero Precision uppers
The Aero Precision M4E1 Threaded Upper 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 Threaded Upper are listed.
FAXON Firearms 16" 223 Wylde Match Stainless Steel
Fits, check noteCheck fit
Daniel Defense 14.5" 5.56 NATO CHF Mid-Length 1:7
Fits, check noteCheck fit
Rosco Bloodline 16" 556
Fits, check noteCheck fit
Aero Precision 5.56 Mid-Length
Fits, check noteCheck fit
Upper Receivers frequently paired with the Rosco Manufacturing Bloodline 5.56 M4
Most picked next to it in real builds. Only parts our rules say fit the Rosco Manufacturing Bloodline 5.56 M4 are listed.
