Does the PSA Lower 300BO work with the Geissele Automatics Super Duty Mod 1?

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

Lower Receiver

PSA Lower 300BO

from $249.99

Geissele Automatics Super Duty Mod 1 .300 Blackout AR-15 Complete Upper Receiver - 8" - DDC

Upper Receiver

Geissele Automatics Super Duty Mod 1 .300 Blackout

from $1410.00

Palmetto State Armory lower and Geissele upper compatibility

Yes, they fit

The PSA Lower 300BO works with the Geissele Automatics Super Duty Mod 1 .300. Our compatibility rules found no conflict between them.

This exact setup has been built more than once on GunPartPicker.

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 Geissele 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 Geissele Automatics Super Duty Mod 1

Share of builds with the Geissele Automatics Super Duty Mod 1 and any lower

  • PSA Lower 300BO

    Of lower picks
    0.2%
    Median paid
    $250

  • Geissele Automatics Super Duty Mod 1

    Of upper picks
    0.1%
    Median paid
    $1310
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 Geissele upper

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

Bolt Carrier Group

Stock & Brace

Charging Handle

Optic

Trigger

Suppressor

Light

PSA Lower 300BO vs Geissele Automatics Super Duty: specs and prices

PSA Lower 300BOGeissele Automatics Super
Best price$249.99 at Palmetto State Armory$1410.00 at BattleHawk Armory
Stores1 of 1 in stock0 of 3 in stock
AssemblyCompleteComplete
PlatformAR-15AR-15
Caliber300 Blackout300 Blackout
Trigger Pin.154n/a
ColorFDEn/a
Lengthn/a8

Both for $1659.99 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

Geissele Automatics Super Duty Mod 1 .300

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.
  • Geissele Automatics Super Duty Mod 1: lowest $1410.00 on Jul 5, highest $1500.00 on Jul 20 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 Geissele Automatics Super Duty Mod 1

Most picked next to it in real builds. Only parts our rules say fit the Geissele Automatics Super Duty Mod 1 are listed.