Does the Diamondback DB15 AR Lower work with the CMMG MK4/ Forward Assist Coyote Tan?

Diamondback DB15 AR Lower, Black - DB2210R001

Lower Receiver

Diamondback DB15 AR Lower

from $58.99

CMMG Upper Receiver Assembly Mk4/AR15 Forward Assist Coyote Tan

Upper Receiver

CMMG MK4/ Forward Assist Coyote Tan

from $127.99

Diamondback lower and CMMG upper compatibility

Yes, they fit

The Diamondback DB15 AR Lower works with the CMMG MK4/ Forward Assist Coyote Tan. 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 Diamondback lower and CMMG upper

Backed by tens of thousands of qualified builds that have both a lower and an upper.

Upper Receivers builders put on the Diamondback DB15 AR Lower

Share of builds with the Diamondback DB15 AR Lower and any upper

Lower Receivers builders put under the CMMG MK4/ Forward Assist Coyote Tan

Share of builds with the CMMG MK4/ Forward Assist Coyote Tan and any lower

  • Diamondback DB15 AR Lower

    Of lower picks
    0.3%
    Median paid
    $59

  • CMMG MK4/ Forward Assist Coyote Tan

    Of upper picks
    0.1%
    Median paid
    $128
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 Diamondback lower and CMMG upper

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

Trigger

Pistol Grip

Bolt Carrier Group

Stock & Brace

Muzzle Device

Optic

Barrel

Charging Handle

Gas Block

Suppressor

Handguard

Diamondback DB15 AR Lower vs CMMG MK4/ Forward Assist: specs and prices

Diamondback DB15 AR LowerCMMG MK4/ Forward Assist
Best price$65.00 at BattleHawk Armory$127.99 at Optics Planet
Stores4 of 7 in stock0 of 1 in stock
AssemblyStrippedStripped
PlatformAR-15AR-15
CaliberMultin/a
Trigger Pin.154n/a
FinishHardcoat Anodizedn/a
ColorBlackn/a

Both for $192.99 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.

Diamondback DB15 AR Lower

CMMG MK4/ Forward Assist Coyote Tan

Price history, last 90 days

  • Diamondback DB15 AR Lower: lowest $64.99 on Aug 29, highest $88.99 on Aug 15 over the last 90 days.
  • CMMG MK4/ Forward Assist Coyote Tan: lowest $123.99 on Aug 29, highest $129.99 on Jul 5 over the last 90 days.

Upper Receivers frequently paired with the Diamondback DB15 AR Lower

Most picked next to it in real builds. Only parts our rules say fit the Diamondback DB15 AR Lower are listed.

Lower Receivers frequently paired with the CMMG MK4/ Forward Assist Coyote Tan

Most picked next to it in real builds. Only parts our rules say fit the CMMG MK4/ Forward Assist Coyote Tan are listed.