Iron Desert Armory Advantage
Complete uppers are organized by exact platform and configuration so you can compare the assembly to your lower receiver, ammunition, and intended setup before ordering.
Overview
This Bear Creek Arsenal complete AR upper is chambered in .300 Blackout and is listed with a 10-inch barrel, 1:7 twist, pistol-length gas system, and M-LOK handguard. It is an upper assembly, not a serialized lower receiver.
Features
- Brand / Manufacturer: Bear Creek Arsenal
- Product type: Upper Receivers/Conv Kits
- Platform: AR
- Chambering: .300 Blackout
- Barrel: 10-inch, 1:7 twist
- Gas system: Pistol length
- Handguard: M-LOK
Ideal Use Cases
For compatible AR-platform build, replacement, or upper-assembly projects where the listed chambering, barrel, gas system, and receiver interface match the intended lower and configuration.
Compliance Notes
Confirm lower-receiver compatibility, headspace and ammunition compatibility, and all applicable federal, state, and local requirements before assembly or use.
