338 ARC Uppers
Extreme Subsonic Power: .338 ARC Complete Uppers
Redefine the limits of the AR-15 platform with our selection of .338 ARC complete uppers. Engineered by Hornady to surpass the 300 Blackout in every metric, the .338 Advanced Rifle Cartridge delivers 1.5x more subsonic energy, making it the premier choice for suppressed hunting and tactical applications. These complete upper receivers allow you to launch massive 307gr Sub-X projectiles from a lightweight, standard-frame AR-15 without the bulk or weight of a large-frame AR-10. Whether you are targeting feral hogs or looking for a discreet home-defense solution, the .338 ARC provides .44 Magnum-tier lethality with the modularity of the modern sporting rifle.
Every .338 ARC complete upper assembly in our inventory is optimized for reliable cycling and match-grade precision. We utilize 6.5 Grendel Type II bolt faces and specialized gas porting to ensure flawless operation with both heavy subsonic and 175gr supersonic loads. Our barrels feature a 1:8 and 1:5 twist rates to provide the necessary rotational stability for ultra-heavy .338 bullets, maintaining sub-MOA accuracy even at extended ranges. By choosing a plug-and-play .338 ARC upper with optional bolt carrier group and charging handle, you gain access to a thumper that hits harder than a .223 ever could, while retaining 100% compatibility with your favorite AR-15 lower receiver.
Our 338 ARC uppers are a great way to finish off a precision rifle build. Purposefully designed for hard-hitting subsonic performance, the 338 ARC delivers 1.5 times more energy than the 300 Blackout Subsonic. We offer 338 ARC AR-15 UPPERS with different length barrels depending on the purpose of you project. 338 ARC provides reliable cycling with both supersonic and subsonic loads because it was engineered for constant pressure. With grain weights on the market from 175 gr to 307 gr. available from Hornady, we have what you need at AR15 Elite so buy with confidence.
Customers Also Liked These Calibers:
300 Blackout | 8.6 Blackout | 458 Socom