6MM ARC Complete Upper
Next-Gen Precision: 6mm ARC Complete Uppers
Elevate your long-range potential with our selection of high-performance 6mm ARC complete uppers. Purpose-built by Hornady to bring the ballistics of a large-frame rifle to the versatile AR-15 platform, the 6mm Advanced Rifle Cartridge offers a flatter trajectory and significantly less wind drift than the traditional .308 Winchester. These complete upper receivers are a true "plug-and-play" solution for shooters demanding sub-MOA precision and 1,000-yard effective range without the weight and recoil of an AR-10. Whether you are competing in a PRS gas-gun match or hunting medium game, our 6mm ARC upper assemblies deliver the perfect balance of terminal energy and match-grade accuracy.
Every 6mm ARC complete upper in our inventory is optimized for reliable cycling and maximum velocity. Our rifle length gas systems allow for longer dwell time in the barrel ensuring maximum powder burn and maximum bullet velocities. To ensure long-term durability, our uppers utilize the specialized 6.5 Grendel Type II bolt face and high-pressure bolt carrier groups (BCG) designed specifically for this high-performance cartridge. We feature match-grade barrels with an optimized 1:7.5 or 1:7 twist rate, perfectly tuned to stabilize high-BC projectiles like the 108gr ELD-M and 103gr ELD-X. Arriving fully assembled with an M-LOK free-float rail and a tuned gas system, our 6mm ARC uppers are tested for headspace with Manson Go and No-Go gauges and ready to help you dominate the range or the field.
Shop our selection of 6MM ARC uppers and customize them to your taste at AR15 Elite. We have a variety of options for your next AR-15 UPPER ASSEMBLY to make it just how you want it. 6MM ARC is a great cartridge from Hornady for hunting, target shooting and personal defense with a wide variety of bullet grain weights to choose from. Browse our inventory online now to start shopping.
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