Bear Creek Arsenal 300 B/O Complete Upper 10." Barrel 1:7 Twist Pistol Length Gas MLOK

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.