The Faxon Firearms .338 ARC Upper Receiver (brand part no. URFAXFAC338) is built specifically to run .338 ARC barrels on the AR-15 platform. Faxon Firearms designs this upper around the .338 ARC cartridge’s unique dimensions, giving builders a correctly matched receiver instead of adapting a standard 5.56 upper. It is the right starting point for anyone building a dedicated .338 ARC upper.

Key Specifications

• Chambered for .338 ARC.
• Built specifically for .338 ARC barrels.
• Fits the AR-15 platform.

Frequently Asked Questions

What cartridge is this upper built for? .338 ARC.

Does this upper come with a barrel? No, it is built specifically to run .338 ARC barrels, sold separately.

Buy the Faxon Firearms .338 ARC Upper Receiver

Start your dedicated .338 ARC build with a correctly matched Faxon upper. Order it from our AR15 uppers selection at our Lubbock, Texas gun shop, and it will ship as soon as it’s available.