Does the Smith & Wesson M&P15 Lower work with the CMMG BANSHEE UPPER GROUP FIXED 9MM 8?
Lower Receiver
Smith & Wesson M&P15 Lower 5.56x45mm/.223 Remington
from $269.99
Upper Receiver
CMMG BANSHEE UPPER GROUP FIXED 9MM 8
from $740.26
Smith & Wesson lower and CMMG upper compatibility
They fit, with a catch
The Smith & Wesson M&P15 Lower 5.56x45mm/.223 works with the CMMG BANSHEE UPPER GROUP FIXED 9MM 8, with one thing to check: Lower Receiver (5.56 NATO) needs a 9mm magazine well adapter for a PCC/9mm build.
No one has built this exact setup yet, but Smith & Wesson lowers with CMMG 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 Smith & Wesson lower and CMMG upper
Backed by tens of thousands of qualified builds that have both a lower and an upper.
Share of builds with the Smith & Wesson M&P15 Lower and any upper
Smith & Wesson M&P15 Lower
- Of lower picks
- 4.9%
- Median paid
- $270
CMMG BANSHEE UPPER GROUP FIXED 9MM 8
Not in enough builds yet to report.
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 Smith & Wesson lower and CMMG upper
The part builders pick most often in each slot alongside these two, checked against both. Parts that conflict are left out.
Smith & Wesson M&P15 Lower vs CMMG BANSHEE UPPER GROUP FIXED: specs and prices
| Smith & Wesson M&P15 Lower | CMMG BANSHEE UPPER GROUP | |
|---|---|---|
| Best price | $339.20 at Classic Firearms | $849.99 at Primary Arms |
| Stores | 4 of 6 in stock | 1 of 3 in stock |
| Assembly | Complete | Complete |
| Platform | AR-15 | AR-9 |
| Caliber | 5.56 NATO | 9mm |
| Color | Black | n/a |
| Gas System Length | n/a | Blowback |
| Length | n/a | 8 |
Both for $1189.19 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.
Smith & Wesson M&P15 Lower 5.56x45mm/.223
Price history, last 90 days
- Smith & Wesson M&P15 Lower: lowest $269.99 on Jul 11, highest $420.99 on Sep 26 over the last 90 days.
- CMMG BANSHEE UPPER GROUP FIXED 9MM 8: lowest $740.26 on Jul 5, highest $849.99 on Jul 7 over the last 90 days.
Upper Receivers frequently paired with the Smith & Wesson M&P15 Lower
Most picked next to it in real builds. Only parts our rules say fit the Smith & Wesson M&P15 Lower are listed.
Lower Receivers most paired with CMMG uppers
The CMMG BANSHEE UPPER GROUP FIXED 9MM 8 is not in enough builds yet, so these are the most picked next to any CMMG upper. Only parts our rules say fit the CMMG BANSHEE UPPER GROUP FIXED 9MM 8 are listed.
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