BC-9 | 9MM Billet Right Side Charging Bufferless Upper | 5" Parkerized M4 Barrel | 1:10 Twist | Blow Back Gas System | 4" MLOK Split Rail | with BCG & Charging Handle
For conversion instructions watch here
The upper will come with the Picatinny rail stock adapter and all the parts to make it bufferless.
If using on an AR15 Lower you will need this tool to convert the non bufferless to bufferless. You will also need a Stern defense magwell adapter.
Popular Accessories bought with this Complete Upper Assembly
This BCA AR-15 complete 9MM pistol length bufferless (Patent Pending) upper has a 5" M4 barrel with a parkerized finish, and features a 1:10 twist rate, with a blow back gas system. It includes a 4" MLOK rail, an M4 flat-top billet upper receiver, a BCA bolt carrier group, a flash hider, and Gen 2 (patent pending) Side Charging handle, and fits on a mil-spec AR-9 Bufferless lower.
Shop more 9mm!
Check out Magazines here!
*Note – We strive to provide the most accurate photographs of our product. Variations may occur in the skeletonized section of the handguard/flash hider you receive.
| Color | Anodized - Default |
|---|---|
| SKU | UASC-2126-9MMSB5110PBUF-4ASR |
| Weight (lbs) | 1.550000 |
| Manufacturer | Bear Creek Arsenal |
| Magazine Capacity | N/A |
| Barrel Length | 5 |
| Profile | M4 Contour |
| Twist | 1:10 |
| Barrel Finish | Parkerized |
| Material | 4150 Chrome Moly Vanadium |
| Thread Pitch | 1/2 x 36 |
| Caliber | 9MM |
| Feed Ramp | Single |
| Flutes | Non-fluted |
| Gas System | Blow-Back |
| Charging Style | Right Side Charging |
| Classification | Complete Upper Assembly |
| Platform | AR-9 |
| Bolt Material | E9310 |
| Receiver Material | Billet |
| Choke Tubes | No |


























