Does the Aero Precision M4E1 Threaded 6.5 Grendel work with the Wilson Combat Bolt Carrier Assy 5.56?

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

Wilson Combat M16 Bolt Carrier Assy 5.56 Nato Polished Blk Nitride

Bolt Carrier Group

Wilson Combat Bolt Carrier Assy 5.56 NATO Polished Nitride

from $150.49

Aero Precision upper and Wilson Combat bolt carrier group compatibility

They fit, with a catch

The Aero Precision M4E1 Threaded 6.5 Grendel works with the Wilson Combat Bolt Carrier Assy 5.56 NATO, 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 Wilson Combat 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 Wilson Combat 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 Wilson Combat Bolt Carrier Assy 5.56

Share of builds with the Wilson Combat Bolt Carrier Assy 5.56 and any upper

  • Aero Precision M4E1 Threaded 6.5 Grendel

    Not in enough builds yet to report.

  • Wilson Combat Bolt Carrier Assy 5.56

    Of bolt carrier group picks
    5.8%
    Median paid
    $153
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 Wilson Combat bolt carrier group

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

Lower Receiver

Charging Handle

Trigger

Pistol Grip

Stock & Brace

Optic

Suppressor

Light

Gas Block

Aero Precision M4E1 Threaded vs Wilson Combat Bolt Carrier: specs and prices

Aero Precision M4E1 ThreadedWilson Combat Bolt Carrier
Best price$614.99 at Brownells$150.49 at Ammunition Depot
Stores0 of 2 in stock7 of 8 in stock
AssemblyCompleten/a
PlatformAR-15n/a
Gas System LengthRiflen/a
Caliber6.5 Grendeln/a
Receiver TypeM4E1n/a
Length20n/a
Cartridgen/a5.56 NATO
Stylen/aM16 Bolt Carrier
Finishn/aNitride

Both for $765.48 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 Threaded 6.5 Grendel

Wilson Combat Bolt Carrier Assy 5.56 NATO

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.
  • Wilson Combat Bolt Carrier Assy 5.56: lowest $150.49 on Jul 5, highest $191.99 on Aug 2 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 Wilson Combat Bolt Carrier Assy 5.56

Most picked next to it in real builds. Only parts our rules say fit the Wilson Combat Bolt Carrier Assy 5.56 are listed.