Bear Creek Arsenal has announced the 6mm ARC upper as a new addition to the AR-15 platform, delivering unprecedented performance. The 6mm ARC utilizes efficient, high-BC bullets that do much of what larger cartridges can and everything that smaller cartridges can’t. This upper is designed to provide superior accuracy and performance with a 416R stainless steel construction, in 16-, 18-, 20--, and 24-inch barrel lengths. All of these boast a 1:8-inch twist rate, a relatively fast twist which stabilizes the caliber well, for accuracy at longer ranges. It also has a free-floating handguard for increased stability and reduced barrel heat. The upper is compatible with any mil-spec AR-15 lower receiver, making it easy to upgrade an existing rifles, and as with all Bear Creek Arsenal upper receivers will arrive turn-key and ready to shoot out of the box with BCG and a charging handle.
The 6mm ARC cartridge is versatile, offering excellent accuracy potential and a flat trajectory, making it ideal for the longer shots encountered by ethically minded hunters. For instance, Hornady's Precision Hunter 103-grain ELD-X 6mm ARC load leaves he barrel at 2800 fps, and sports a .258 G7 ballistic coefficient. That's quite a recipe for a dependably flat shooter. While this is one example, the cartridge is also designed to work well with a variety of bullet weights, the 1:8-inch twist exhibiting a broad measure of versatility, so hunters can adjust their loads according to their intended quarry. I myself have used the round on critters from prairie dogs (a bit overkill) to pronghorn, from close in to out past 400 yards, and found it a packs a dependable punch in every instance.
For more information on these 6mm ARC uppers, as well as a wide selection of lowers and accessories to pair with them, visit bearcreekarsenal.com. MSRP: $299.99-$389.99
