Does the Aero Precision M4E1 Threaded 6.5 Grendel work with the FAXON Chameleon 5.56 Nitride?

M4e1 Threaded 6.5 Grendel Assembled Upper Receiver W/Atlas R-One - M4e1-T 6.5 Grendel Assem Upper Dmr 20''''bbl Rifle Threaded Fde

Upper Receiver

Aero Precision M4E1 Threaded 6.5 Grendel Assembled W/Atlas

from $614.99

Faxon Chameleon 5.56 Complete Nitride Bolt Carrier Group - FF556BCGCNITRIDE-NCR

Bolt Carrier Group

FAXON Chameleon 5.56 Nitride

Aero Precision upper and Faxon Firearms bolt carrier group compatibility

They fit, with a catch

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

No one has built this exact setup yet, but Aero Precision uppers with Faxon Firearms bolt carrier groups 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 Faxon Firearms bolt carrier group

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

Upper Receivers builders put under the FAXON Chameleon 5.56 Nitride

Share of builds with the FAXON Chameleon 5.56 Nitride and any upper

  • Aero Precision M4E1 Threaded 6.5 Grendel

    Not in enough builds yet to report.

  • FAXON Chameleon 5.56 Nitride

    Of bolt carrier group picks
    2.7%
    Median paid
    n/a
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 Faxon Firearms bolt carrier group

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

Charging Handle

Trigger

Gas Block

Lower Receiver

Optic

Pistol Grip

Stock & Brace

Handguard

Suppressor

Aero Precision M4E1 Threaded vs FAXON Chameleon 5.56 Nitride: specs and prices

Aero Precision M4E1 ThreadedFAXON Chameleon 5.56 Nitride
Best price$614.99 at Brownellsn/a
Stores0 of 2 in stockn/a
AssemblyCompleten/a
PlatformAR-15n/a
Gas System LengthRiflen/a
Caliber6.5 Grendeln/a
Receiver TypeM4E1n/a
Length20n/a
Cartridgen/a5.56 NATO
Finishn/aNitride

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 Threaded 6.5 Grendel

FAXON Chameleon 5.56 Nitride

No store lists it today.

Price history, last 90 days

  • Aero Precision M4E1 Threaded 6.5 Grendel: lowest $539.30 on Jul 6, highest $614.99 on Aug 29 over the last 90 days.

Bolt Carrier Groups most paired with Aero Precision uppers

The Aero Precision M4E1 Threaded 6.5 Grendel 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 6.5 Grendel are listed.

Upper Receivers frequently paired with the FAXON Chameleon 5.56 Nitride

Most picked next to it in real builds. Only parts our rules say fit the FAXON Chameleon 5.56 Nitride are listed.