Does the FightLite Industries MCR556DFRM Upper work with the A*B Arms PRO 5.56 NATO?

Upper Receiver
FightLite Industries MCR556DFRM Upper 5.56x45mm NATO 16.25\"
from $6399.99

Bolt Carrier Group
A*B Arms PRO 5.56 NATO
from $879.99
FightLite Industries upper and A*B Arms bolt carrier group compatibility
Yes, they fit
The FightLite Industries MCR556DFRM Upper 5.56x45mm works with the A*B Arms PRO 5.56 NATO. 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 FightLite Industries upper and A*B Arms bolt carrier group
Backed by thousands of qualified builds that have both an upper and a bolt carrier group.
Share of builds with the FightLite Industries MCR556DFRM Upper and any bolt carrier group
- ODIN Works Enhanced 9mm NitrideDoes not fit30%
- LMT Defense .308 Piston Carrier GroupDoes not fit13%
- This pairA*B Arms PRO 5.56 NATO4%
- PSA Nitride 6.5 Creedmoore BCGDoes not fit4%
Share of builds with the A*B Arms PRO 5.56 NATO and any upper
- This pairFightLite Industries MCR556DFRM Upper 5.56x45mm25%
- Knights Armament SR-25 APC 308 Winchester 16Does not fit25%
FightLite Industries MCR556DFRM Upper
- Of upper picks
- 0.2%
- Median paid
- $6400
A*B Arms PRO 5.56 NATO
- Of bolt carrier group picks
- 0%
- Median paid
- $880
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 FightLite Industries upper and A*B Arms 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
Suppressor
FightLite Industries vs A*B Arms PRO 5.56 NATO: specs and prices
| FightLite Industries | A*B Arms PRO 5.56 NATO | |
|---|---|---|
| Best price | $6399.99 at Brownells | $879.99 at Sportsmans Outdoor Superstore |
| Stores | 4 of 6 in stock | 0 of 1 in stock |
| Assembly | Complete | n/a |
| Platform | AR-15 | n/a |
| Caliber | 5.56 NATO | n/a |
| Length | 16.25 | n/a |
| Cartridge | n/a | 5.56 NATO |
| Finish | n/a | Nickel Boron |
Both for $7279.98 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.
Price history, last 90 days
- FightLite Industries MCR556DFRM Upper: lowest $6399.99 on Jul 6, highest $6599.99 on Jul 5 over the last 90 days.
Bolt Carrier Groups frequently paired with the FightLite Industries MCR556DFRM Upper
Most picked next to it in real builds. Only parts our rules say fit the FightLite Industries MCR556DFRM Upper are listed.
Upper Receivers frequently paired with the A*B Arms PRO 5.56 NATO
Most picked next to it in real builds. Only parts our rules say fit the A*B Arms PRO 5.56 NATO are listed.














