Does the CMMG MK4/ Forward Assist Armor work with the Cryptic Coatings 5.56 NATO?

CMMG Mk4/AR-15 Forward Assist Upper Receiver Assembly Armor Black

Upper Receiver

CMMG MK4/ Forward Assist Armor

from $115.27

Cryptic Coatings 5.56 Nato Ar-15 Bolt Carrier Group - Mystic Bronze

Bolt Carrier Group

Cryptic Coatings 5.56 NATO

from $217.99

CMMG upper and Cryptic Coatings bolt carrier group compatibility

Yes, they fit

The CMMG MK4/ Forward Assist Armor works with the Cryptic Coatings 5.56 NATO. Our compatibility rules found no conflict between them.

No one has built this exact setup yet, but CMMG uppers with Cryptic Coatings 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 CMMG upper and Cryptic Coatings 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 CMMG MK4/ Forward Assist Armor

Share of builds with the CMMG MK4/ Forward Assist Armor and any bolt carrier group

Upper Receivers builders put under the Cryptic Coatings 5.56 NATO

Share of builds with the Cryptic Coatings 5.56 NATO and any upper

  • CMMG MK4/ Forward Assist Armor

    Of upper picks
    0%
    Median paid
    $115

  • Cryptic Coatings 5.56 NATO

    Of bolt carrier group picks
    4.8%
    Median paid
    $242
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 CMMG upper and Cryptic Coatings 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

Optic

Lower Receiver

Pistol Grip

Stock & Brace

Gas Block

Suppressor

Barrel

CMMG MK4/ Forward Assist Armor vs Cryptic Coatings 5.56 NATO: specs and prices

CMMG MK4/ Forward AssistCryptic Coatings 5.56 NATO
Best price$115.27 at BattleHawk Armory$217.99 at Optics Planet
Stores0 of 2 in stock2 of 2 in stock
AssemblyStrippedn/a
PlatformAR-15n/a
Receiver TypeA4n/a
Cartridgen/a5.56 NATO
Stylen/aM16 Bolt Carrier
Finishn/aTitanium Carbo-Nitride PVD
Weightn/a11.55

Both for $333.26 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.

CMMG MK4/ Forward Assist Armor

Cryptic Coatings 5.56 NATO

Price history, last 90 days

  • CMMG MK4/ Forward Assist Armor: lowest $115.27 on Jul 5, highest $129.79 on Jul 26 over the last 90 days.
  • Cryptic Coatings 5.56 NATO: lowest $217.99 on Jul 21, highest $242.25 on Jul 5 over the last 90 days.

Bolt Carrier Groups most paired with CMMG uppers

The CMMG MK4/ Forward Assist Armor 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/ Forward Assist Armor are listed.

Upper Receivers frequently paired with the Cryptic Coatings 5.56 NATO

Most picked next to it in real builds. Only parts our rules say fit the Cryptic Coatings 5.56 NATO are listed.