Does the Diamondback DB15 AR Lower work with the Diamondback Firearms 300 Blackout 10"?

Diamondback lower and Diamondback barrel compatibility

Yes, they fit

The Diamondback DB15 AR Lower works with the Diamondback Firearms 300 Blackout 10" 1:8 Pistol. 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 Diamondback barrel

Backed by thousands of qualified builds that have both a lower and a barrel.

Barrels builders put on the Diamondback DB15 AR Lower

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

Lower Receivers builders put under the Diamondback Firearms 300 Blackout 10"

Share of builds with the Diamondback Firearms 300 Blackout 10" and any lower

  • Diamondback DB15 AR Lower

    Of lower picks
    0.3%
    Median paid
    $59
  • Diamondback Firearms 300 Blackout 10"

    Of barrel picks
    0.1%
    Median paid
    $80
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 Diamondback barrel

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

Diamondback DB15 AR Lower vs Diamondback Firearms 300: specs and prices

Diamondback DB15 AR LowerDiamondback Firearms 300
Best price$65.00 at BattleHawk Armory$80.00 at BattleHawk Armory
Stores4 of 7 in stock4 of 5 in stock
AssemblyStrippedn/a
PlatformAR-15n/a
CaliberMulti300 Blackout
Trigger Pin.154n/a
FinishHardcoat Anodizedn/a
ColorBlackn/a
Gas Systemn/aPistol
Lengthn/a10
Twistn/a1:8
Contourn/aHBAR

Both for $145.00 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

Diamondback Firearms 300 Blackout 10" 1:8 Pistol

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.
  • Diamondback Firearms 300 Blackout 10": lowest $80.00 on Jul 5, highest $109.99 on Aug 15 over the last 90 days.

Barrels 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 most paired with Diamondback barrels

The Diamondback Firearms 300 Blackout 10" is not in enough builds yet, so these are the most picked next to any Diamondback barrel. Only parts our rules say fit the Diamondback Firearms 300 Blackout 10" are listed.