Does the TacFire Pistol Upper .300 AAC Blackout work with the WMD Guns //M4 BCG 5.56 NIB-X Firehouse?

TacFire Pistol Upper Assembly .300 AAC Blackout 10 Barrel

Upper Receiver

TacFire Pistol Upper .300 AAC Blackout 10 Barrel

from $252.88

WMD Guns AR-15/M16/M4 Bolt Carrier Group BCG 5.56 NiB-X Firehouse Red

Bolt Carrier Group

WMD Guns //M4 BCG 5.56 NIB-X Firehouse Red

from $167.99

TacFire upper and WMD Guns bolt carrier group compatibility

Yes, they fit

The TacFire Pistol Upper .300 AAC Blackout 10 Barrel works with the WMD Guns //M4 BCG 5.56 NIB-X Firehouse Red. 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 TacFire upper and WMD Guns 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 Pistol Upper .300 AAC Blackout

Share of builds with the TacFire Pistol Upper .300 AAC Blackout and any bolt carrier group

Upper Receivers builders put under the WMD Guns //M4 BCG 5.56 NIB-X Firehouse

Share of builds with the WMD Guns //M4 BCG 5.56 NIB-X Firehouse and any upper

  • TacFire Pistol Upper .300 AAC Blackout

    Of upper picks
    0.2%
    Median paid
    $254

  • WMD Guns //M4 BCG 5.56 NIB-X Firehouse

    Of bolt carrier group picks
    0.1%
    Median paid
    $158
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 WMD Guns bolt carrier group

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

Lower Receiver

Charging Handle

Trigger

Light

Optic

Pistol Grip

Stock & Brace

Suppressor

TacFire Pistol Upper .300 AAC vs WMD Guns //M4 BCG 5.56 NIB-X: specs and prices

TacFire Pistol Upper .300WMD Guns //M4 BCG 5.56 NIB-X
Best price$252.88 at BattleHawk Armory$167.99 at Optics Planet
Stores6 of 6 in stock0 of 1 in stock
AssemblyCompleten/a
PlatformAR-15n/a
Caliber300 Blackoutn/a
Length10n/a
Cartridgen/a5.56 NATO
Finishn/aNickel Boron

Both for $420.87 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 Pistol Upper .300 AAC Blackout 10 Barrel

WMD Guns //M4 BCG 5.56 NIB-X Firehouse Red

Price history, last 90 days

  • TacFire Pistol Upper .300 AAC Blackout: lowest $269.99 on Aug 12, highest $299.99 on Jul 5 over the last 90 days.
  • WMD Guns //M4 BCG 5.56 NIB-X Firehouse: lowest $167.99 on Jul 5, highest $167.99 on Jul 5 over the last 90 days.

Bolt Carrier Groups frequently paired with the TacFire Pistol Upper .300 AAC Blackout

Most picked next to it in real builds. Only parts our rules say fit the TacFire Pistol Upper .300 AAC Blackout are listed.

Upper Receivers frequently paired with the WMD Guns //M4 BCG 5.56 NIB-X Firehouse

Most picked next to it in real builds. Only parts our rules say fit the WMD Guns //M4 BCG 5.56 NIB-X Firehouse are listed.