Does the Sharps Bros MB47 7.62x39mm AR Lower work with the Tacfire 7" Upper 5.56x45mm 1:8?

Lower Receiver
Sharps Bros MB47 7.62x39mm AR Lower
from $260.61

Upper Receiver
Tacfire 7" Upper 5.56x45mm 1:8
from $241.33
Sharps Bros lower and TacFire upper compatibility
Yes, they fit
The Sharps Bros MB47 7.62x39mm AR Lower works with the Tacfire 7" Upper 5.56x45mm 1:8. Our compatibility rules found no conflict between them.
No one has built this exact setup yet, but Sharps Bros lowers with TacFire uppers are a common pairing.
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 Sharps Bros lower and TacFire upper
Backed by tens of thousands of qualified builds that have both a lower and an upper.
Share of builds with the Sharps Bros MB47 7.62x39mm AR Lower and any upper
Share of builds with the Tacfire 7" Upper 5.56x45mm 1:8 and any lower
Sharps Bros MB47 7.62x39mm AR Lower
- Of lower picks
- 0%
- Median paid
- $259
Tacfire 7" Upper 5.56x45mm 1:8
- Of upper picks
- 1.1%
- Median paid
- $240
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 Sharps Bros lower and TacFire upper
The part builders pick most often in each slot alongside these two, checked against both. Parts that conflict are left out.
Sharps Bros MB47 7.62x39mm AR vs Tacfire 7" Upper 5.56x45mm 1:8: specs and prices
| Sharps Bros MB47 7.62x39mm | Tacfire 7" Upper 5.56x45mm | |
|---|---|---|
| Best price | $260.61 at BattleHawk Armory | $241.33 at BattleHawk Armory |
| Stores | 0 of 1 in stock | 6 of 6 in stock |
| Assembly | Stripped | Complete |
| Platform | AR-15 | AR-15 |
| Caliber | 7.62x39mm | 5.56 NATO |
| Color | Black | n/a |
| Length | n/a | 7 |
Both for $501.94 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
- Tacfire 7" Upper 5.56x45mm 1:8: lowest $258.99 on Jul 15, highest $289.99 on Aug 2 over the last 90 days.
Upper Receivers most paired with Sharps Bros lowers
The Sharps Bros MB47 7.62x39mm AR Lower is not in enough builds yet, so these are the most picked next to any Sharps Bros lower. Only parts our rules say fit the Sharps Bros MB47 7.62x39mm AR Lower are listed.
Lower Receivers 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.



















