Does the KAK Complete AR-15 Upper Receiver work with the KAK BCG 556 K-SPEC FDE DE?

KAK Complete AR-15 Upper Receiver - 5.56 NATO - 11.5"

Upper Receiver

KAK Complete AR-15 Upper Receiver

from $382.46

KAK AR15 BCG M16 556 K-SPEC FDE DE

Bolt Carrier Group

KAK BCG 556 K-SPEC FDE DE

from $215.99

KAK Industry upper and KAK Industry bolt carrier group compatibility

Yes, they fit

The KAK Complete AR-15 Upper Receiver works with the KAK BCG 556 K-SPEC FDE DE. Our compatibility rules found no conflict between them.

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 KAK Industry upper and KAK Industry 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 KAK BCG 556 K-SPEC FDE DE

Share of builds with the KAK BCG 556 K-SPEC FDE DE and any upper

  • KAK Complete AR-15 Upper Receiver

    Of upper picks
    0%
    Median paid
    $421

  • KAK BCG 556 K-SPEC FDE DE

    Of bolt carrier group picks
    0%
    Median paid
    $189
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 KAK Industry upper and KAK Industry 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

Pistol Grip

Handguard

Lower Receiver

Optic

Trigger

Rifle Scope

Muzzle Device

Barrel

KAK Complete AR-15 Upper vs KAK BCG 556 K-SPEC FDE DE: specs and prices

KAK Complete AR-15 UpperKAK BCG 556 K-SPEC FDE DE
Best price$382.46 at Primary Arms$215.99 at Optics Planet
Stores0 of 1 in stock0 of 3 in stock
AssemblyCompleten/a
PlatformAR-15n/a
Caliber5.56 NATOn/a
Length11.5n/a
Cartridgen/a5.56 NATO

Both for $598.45 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.

KAK Complete AR-15 Upper Receiver

KAK BCG 556 K-SPEC FDE DE

Price history, last 90 days

  • KAK Complete AR-15 Upper Receiver: lowest $382.46 on Jul 5, highest $382.46 on Jul 5 over the last 90 days.
  • KAK BCG 556 K-SPEC FDE DE: lowest $215.99 on Jul 5, highest $216.99 on Jul 12 over the last 90 days.

Bolt Carrier Groups most paired with KAK Industry uppers

The KAK Complete AR-15 Upper Receiver is not in enough builds yet, so these are the most picked next to any KAK Industry upper. Only parts our rules say fit the KAK Complete AR-15 Upper Receiver are listed.

Upper Receivers frequently paired with the KAK BCG 556 K-SPEC FDE DE

Most picked next to it in real builds. Only parts our rules say fit the KAK BCG 556 K-SPEC FDE DE are listed.