Does the Aero Precision M4E1 Enhanced Assembled work with the Aero Precision 6.5 Grendel /?

Aero Precision M4E1 Enhanced Assembled Upper Kodiak Brown 5.56

Upper Receiver

Aero Precision M4E1 Enhanced Assembled Upper Kodiak Brown

from $199.99

Aero Precision 6.5 Grendel M16 / Ar-15 Bolt Carrier Group - Black Nitride

Bolt Carrier Group

Aero Precision 6.5 Grendel /

from $159.99

Aero Precision upper and Aero Precision bolt carrier group compatibility

They fit, with a catch

The Aero Precision M4E1 Enhanced Assembled Upper works with the Aero Precision 6.5 Grendel /, with one thing to check: Bolt Carrier Group (6.5 Grendel) has a 6.5 Grendel / 6mm ARC bolt; a 5.56 NATO build needs a 5.56 / .223 bolt.

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 Aero Precision upper and Aero Precision bolt carrier group

Backed by thousands of qualified builds that have both an upper and a bolt carrier group.

Bolt Carrier Groups builders put on the Aero Precision M4E1 Enhanced Assembled

Share of builds with the Aero Precision M4E1 Enhanced Assembled and any bolt carrier group

Upper Receivers builders put under the Aero Precision 6.5 Grendel /

Share of builds with the Aero Precision 6.5 Grendel / and any upper

  • Aero Precision M4E1 Enhanced Assembled

    Of upper picks
    0.1%
    Median paid
    $175

  • Aero Precision 6.5 Grendel /

    Of bolt carrier group picks
    0.1%
    Median paid
    $140
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 Aero Precision bolt carrier group

The part builders pick most often in each slot alongside these two, checked against both. Parts that conflict are left out.

Stock & Brace

Lower Receiver

Charging Handle

Trigger

Pistol Grip

Handguard

Barrel

Gas Block

Aero Precision M4E1 Enhanced vs Aero Precision 6.5 Grendel /: specs and prices

Aero Precision M4E1 EnhancedAero Precision 6.5 Grendel /
Best price$199.99 at Brownells$159.99 at Brownells
Stores0 of 3 in stock0 of 4 in stock
AssemblyCompleten/a
PlatformAR-15n/a
Caliber5.56 NATOn/a
Receiver TypeM4E1n/a
Cartridgen/a6.5 Grendel
Stylen/aM16 Bolt Carrier
Finishn/aNitride

Both for $359.98 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.

Aero Precision M4E1 Enhanced Assembled Upper

Aero Precision 6.5 Grendel /

Price history, last 90 days

  • Aero Precision M4E1 Enhanced Assembled: lowest $174.79 on Jul 6, highest $199.99 on Jul 12 over the last 90 days.
  • Aero Precision 6.5 Grendel /: lowest $140.30 on Jul 6, highest $167.49 on Jul 22 over the last 90 days.

Bolt Carrier Groups most paired with Aero Precision uppers

The Aero Precision M4E1 Enhanced Assembled 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 Enhanced Assembled are listed.

Upper Receivers frequently paired with the Aero Precision 6.5 Grendel /

Most picked next to it in real builds. Only parts our rules say fit the Aero Precision 6.5 Grendel / are listed.