Take your AR-platform hunting and range setup into a harder-hitting, straight-wall-friendly caliber with the RRA 350 LEGEND CAR SS HALFHP UPPER—a purpose-built upper receiver assembly engineered for shooters who want the proven ergonomics of the AR with the practical power and efficiency of .350 Legend. Whether you’re configuring a dedicated deer rifle, building a compliant straight-wall hunting setup (where applicable), or simply want a unique and effective cartridge for target work, the Rock River Arms (RRA) .350 Legend upper is a premium foundation designed to deliver reliability, accuracy potential, and clean integration with your existing AR lower.
Listed as RRA 350 LEGEND CAR SS HALFHP UPPER (Part #350L0326 / UPC 842834124572), this upper is a smart choice for hunters and enthusiasts who want a factory-built solution rather than piecing together components and hoping everything runs smoothly.
Built Around the .350 Legend Advantage
The .350 Legend has become a popular option for shooters who want a modern, efficient cartridge that performs especially well in AR-style platforms. It’s commonly chosen for:
Whitetail deer hunting
Hog and predator control
General-purpose field use
Range training with a distinctive caliber
Straight-wall hunting zones (regulations vary by state and locality)
When paired with a quality upper, .350 Legend can provide excellent real-world usability—manageable recoil, straightforward handling, and solid terminal performance with appropriate hunting loads.
RRA Quality: A Factory-Configured Upper You Can Trust
Rock River Arms is known for building rifles and components with a focus on fit, finish, and dependable function. The benefit of choosing a factory-configured upper like this is consistency: alignment, assembly, and component selection are designed to work together as a system. That means fewer surprises when you mount optics, tune your setup, and head into the field.
This upper is ideal for shooters who prioritize:
Reliable cycling with quality magazines and ammo
A solid, professional build quality
A clean fit on compatible AR-platform lowers
A dedicated hunting upper that’s ready to configure with your preferred accessories
“CAR SS HALFHP” Configuration: Practical, Purpose-Driven Build
The product name highlights key cues that many shooters specifically look for in a hunting-oriented upper:
CAR: Indicates a carbine-style configuration—often favored for its balanced handling and maneuverability.
SS: Typically denotes stainless steel components (commonly referencing the barrel), which many shooters appreciate for corrosion resistance and long-term durability.
HALFHP: Often refers to a half heavy profile style barrel contour, a popular compromise between lightweight carry and steadier heat/rigidity characteristics.
Because manufacturers can label configurations differently across runs, the best way to confirm any exact dimensional specs (barrel length, gas system length, twist rate, and included accessories) is always to reference the listing details from the seller. But as a configuration concept, this naming convention points to a build meant to balance field carry comfort with stability for accurate shooting.
A Smart Upper for AR Hunters and Builders
If you already own a compatible AR lower, adding a dedicated .350 Legend upper is one of the fastest ways to expand your capabilities without investing in a full additional rifle. Simply configure your optics and accessories, select the right magazines and ammunition, and you’ve got a hunting-ready upper suited to the caliber’s strengths.
This upper is a great match for:
Hunters wanting a dedicated straight-wall-capable AR upper (where legal)
Shooters who prefer a carbine-style hunting setup that’s easy to carry
Anyone seeking a factory-built .350 Legend upper from a recognized AR manufacturer
Builders who want an upper that looks and feels like a cohesive, professionally assembled system
Optics-Ready, Accessory-Friendly AR Modularity
One of the biggest benefits of building around the AR platform is modularity. With the right optic and mounting solution, a .350 Legend upper can be set up for your specific needs, including:
Low-power variable optics (LPVOs) for versatile field use
Traditional hunting scopes for longer shots (within appropriate cartridge limits)
Red dot setups for fast handling in brush and timber
Sling mounting solutions and other practical field accessories
Because this is an upper receiver assembly, you can choose the exact supporting components—trigger, stock, optic, and accessories—that match your hunting style.
Why Choose the RRA 350 Legend Upper?
If your goal is a dependable, ready-to-configure .350 Legend AR upper built with a practical balance of durability and handling, this model stands out as a premium option. The carbine-style approach, stainless-oriented configuration cues, and factory-built quality make it a strong candidate for hunters who want performance and peace of mind.
Key Reasons Shooters Like This Upper
Dedicated .350 Legend upper for AR-platform builds
Factory-configured by Rock River Arms (RRA)
Carbine-style design cues for balanced handling
Stainless-oriented configuration (as indicated by “SS”)
Built as a cohesive system for reliability and long-term use
Product Identification
Bring more capability to your AR build with a dedicated upper designed around one of today’s most practical hunting calibers. The RRA 350 LEGEND CAR SS HALFHP UPPER 350L0326 842834124572 is a premium, factory-configured option for shooters who want a reliable, field-ready .350 Legend setup built on the AR platform.
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