Does the PSA Lower 300BO work with the Daniel Defense DDM4 300S .300 10.3" Bbl?

PSA Complete Lower 300BO, JAKL, Pistol, MOE EPT w/o Brace, ODG

Lower Receiver

PSA Lower 300BO

from $249.99

Daniel Defense DDM4 300S .300 BLK 10.3" Bbl Complete Upper Receiver Group 23-088-19020-047

Upper Receiver

Daniel Defense DDM4 300S .300 10.3" Bbl Group

from $1392.00

Palmetto State Armory lower and Daniel Defense upper compatibility

Yes, they fit

The PSA Lower 300BO works with the Daniel Defense DDM4 300S .300 10.3" Bbl Group. 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 Palmetto State Armory lower and Daniel Defense upper

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

Upper Receivers builders put on the PSA Lower 300BO

Share of builds with the PSA Lower 300BO and any upper

Lower Receivers builders put under the Daniel Defense DDM4 300S .300 10.3" Bbl

Share of builds with the Daniel Defense DDM4 300S .300 10.3" Bbl and any lower

  • PSA Lower 300BO

    Of lower picks
    0%
    Median paid
    $250

  • Daniel Defense DDM4 300S .300 10.3" Bbl

    Of upper picks
    0%
    Median paid
    $1148
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 Palmetto State Armory lower and Daniel Defense upper

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

Charging Handle

Bolt Carrier Group

Stock & Brace

Barrel

Trigger

Optic

Pistol Grip

Buffer Tube Assembly

PSA Lower 300BO vs Daniel Defense DDM4 300S .300: specs and prices

PSA Lower 300BODaniel Defense DDM4 300S
Best price$249.99 at Palmetto State Armory$1392.00 at BattleHawk Armory
Stores1 of 1 in stock2 of 5 in stock
AssemblyCompleteComplete
PlatformAR-15AR-15
Caliber300 Blackout300 Blackout
Trigger Pin.154n/a
ColorOD Greenn/a
Gas System Lengthn/aPistol
Lengthn/a10.3

Both for $1641.99 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.

PSA Lower 300BO

Daniel Defense DDM4 300S .300 10.3" Bbl Group

Price history, last 90 days

  • PSA Lower 300BO: lowest $237.49 on Jul 12, highest $249.99 on Jul 14 over the last 90 days.
  • Daniel Defense DDM4 300S .300 10.3" Bbl: lowest $1148.35 on Jul 6, highest $1563.99 on Sep 18 over the last 90 days.

Upper Receivers frequently paired with the PSA Lower 300BO

Most picked next to it in real builds. Only parts our rules say fit the PSA Lower 300BO are listed.

Lower Receivers frequently paired with the Daniel Defense DDM4 300S .300 10.3" Bbl

Most picked next to it in real builds. Only parts our rules say fit the Daniel Defense DDM4 300S .300 10.3" Bbl are listed.