Does the Tacfire 7" Upper 5.56x45mm 1:8 work with the PSA 5.56 Full-Auto Nitride MPI?

Tacfire 7" Complete Upper Assembly 5.56x45mm 1:8, Black - BU-556-7

Upper Receiver

Tacfire 7" Upper 5.56x45mm 1:8

from $241.33

PSA AR-15 Bolt Carrier Group 5.56 Full-Auto Nitride MPI - 516446953

Bolt Carrier Group

PSA 5.56 Full-Auto Nitride MPI

from $89.99

TacFire upper and Palmetto State Armory bolt carrier group compatibility

Yes, they fit

The Tacfire 7" Upper 5.56x45mm 1:8 works with the PSA 5.56 Full-Auto Nitride MPI. 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 TacFire upper and Palmetto State Armory bolt carrier group

Backed by thousands of qualified builds that have both an upper and a bolt carrier group.

Bolt Carrier Groups builders put on the Tacfire 7" Upper 5.56x45mm 1:8

Share of builds with the Tacfire 7" Upper 5.56x45mm 1:8 and any bolt carrier group

Upper Receivers builders put under the PSA 5.56 Full-Auto Nitride MPI

Share of builds with the PSA 5.56 Full-Auto Nitride MPI and any upper

  • Tacfire 7" Upper 5.56x45mm 1:8

    Of upper picks
    1.1%
    Median paid
    $240

  • PSA 5.56 Full-Auto Nitride MPI

    Of bolt carrier group picks
    3.8%
    Median paid
    $75
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 TacFire upper and Palmetto State Armory 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

Lower Receiver

Stock & Brace

Pistol Grip

Trigger

Gas Block

Tacfire 7" Upper 5.56x45mm 1:8 vs PSA 5.56 Full-Auto Nitride MPI: specs and prices

Tacfire 7" Upper 5.56x45mmPSA 5.56 Full-Auto Nitride
Best price$241.33 at BattleHawk Armory$89.99 at Palmetto State Armory
Stores6 of 6 in stock1 of 1 in stock
AssemblyCompleten/a
PlatformAR-15n/a
Caliber5.56 NATOn/a
Length7n/a
Cartridgen/a5.56 NATO
Stylen/aFull-Auto
Finishn/aNitride

Both for $331.32 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.

Tacfire 7" Upper 5.56x45mm 1:8

PSA 5.56 Full-Auto Nitride MPI

Price history, last 90 days

  • Tacfire 7" Upper 5.56x45mm 1:8: lowest $258.99 on Jul 15, highest $289.99 on Aug 2 over the last 90 days.
  • PSA 5.56 Full-Auto Nitride MPI: lowest $69.99 on Jul 31, highest $89.99 on Aug 11 over the last 90 days.

Bolt Carrier Groups frequently paired with the Tacfire 7" Upper 5.56x45mm 1:8

Most picked next to it in real builds. Only parts our rules say fit the Tacfire 7" Upper 5.56x45mm 1:8 are listed.

Upper Receivers frequently paired with the PSA 5.56 Full-Auto Nitride MPI

Most picked next to it in real builds. Only parts our rules say fit the PSA 5.56 Full-Auto Nitride MPI are listed.