Does the Battle Arms Workhorse .223 Remington AR work with the Foxtrot Mike Products FM Products MIKE-9?

Battle Arms Workhorse .223 Remington AR Lower, Black - WHLRRB5

Lower Receiver

Battle Arms Workhorse .223 Remington AR Lower

from $369.99

FM Products MIKE-9 9mm Front Charging Complete Upper Receiver - 10"

Upper Receiver

Foxtrot Mike Products FM Products MIKE-9 9mm Front Charging

from $379.00

Battle Arms Development lower and Foxtrot Mike Products upper compatibility

They fit, with a catch

The Battle Arms Workhorse .223 Remington AR Lower works with the Foxtrot Mike Products FM Products MIKE-9 9mm, with one thing to check: Lower Receiver (.223 Wylde) needs a 9mm magazine well adapter for a PCC/9mm build.

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 Battle Arms Development lower and Foxtrot Mike Products upper

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

Lower Receivers builders put under the Foxtrot Mike Products FM Products MIKE-9

Share of builds with the Foxtrot Mike Products FM Products MIKE-9 and any lower

  • Battle Arms Workhorse .223 Remington AR

    Of lower picks
    0%
    Median paid
    $370

  • Foxtrot Mike Products FM Products MIKE-9

    Of upper picks
    0.1%
    Median paid
    $379
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 Battle Arms Development lower and Foxtrot Mike Products 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

Trigger

Optic

Suppressor

Stock & Brace

Pistol Grip

Battle Arms Workhorse .223 vs Foxtrot Mike Products FM: specs and prices

Battle Arms Workhorse .223Foxtrot Mike Products FM
Best price$369.99 at BattleHawk Armory$379.00 at Optics Planet
Stores3 of 3 in stock2 of 2 in stock
AssemblyStrippedComplete
PlatformAR-15AR-9
Caliber.223 Wylde9mm
ColorBlackn/a
Lengthn/a10

Both for $748.99 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.

Battle Arms Workhorse .223 Remington AR Lower

Foxtrot Mike Products FM Products MIKE-9 9mm

Price history, last 90 days

  • Battle Arms Workhorse .223 Remington AR: lowest $369.99 on Jul 5, highest $371.69 on Jul 11 over the last 90 days.
  • Foxtrot Mike Products FM Products MIKE-9: lowest $379.00 on Jul 5, highest $399.00 on Jul 27 over the last 90 days.

Upper Receivers most paired with Battle Arms Development lowers

The Battle Arms Workhorse .223 Remington AR is not in enough builds yet, so these are the most picked next to any Battle Arms Development lower. Only parts our rules say fit the Battle Arms Workhorse .223 Remington AR are listed.

Lower Receivers frequently paired with the Foxtrot Mike Products FM Products MIKE-9

Most picked next to it in real builds. Only parts our rules say fit the Foxtrot Mike Products FM Products MIKE-9 are listed.