+1-800-504-5897 Help Center Check Order Status
About Us Policies Reviews How To
Free Shipping & Free Returns*

FREE SHIPPING on Over 250,000 Products

Enjoy free shipping during the holidays! Shop now and get Free Value Shipping on most orders over $49 to the contiguous 48 states, DC and to all U.S. Military APO/FPO/DPO addresses.

Enjoy Our Extended FREE RETURNS

We want to ensure that making a return is as easy as possible! With our Hassle-Free, Extended Holiday Returns, eligible orders placed from November 12, 2025 on will benefit from an extended return deadline (January 13, 2026 or 30 days after receipt of your order - whichever is later). We'll even cover the cost of return shipping. Learn more about our Return Policy.

  • Entire Store
  • ...
  • Apparel & Footwear
  • Astronomy
  • Everything Else
  • Eyewear
  • Hunting Gear
  • Lab Equipment
  • Military Gear
  • Outdoor Gear
  • Photography Equipment
  • Police, EMS & Fire
  • Shooting
  • Sport Optics
  • Sports & Hobbies
TIP
Shopping Cart

Rock River Arms AR15 Upper Receivers for Sale Up to 39% Off — 49 products / 80 models

Our extensive selection of Rock River Arms AR15 Upper Receivers is certain to satisfy even the greatest gun collectors. We supply an extensive array of substitute parts to get your firearm back functioning like the time it left the manufacturer. We supply the top AR15 Upper Receivers on the market which means your gun can be up to the expectations which you're familiar with. However, if you happen to be the type of person that desires to boost everything you possess, then we offer aftermarket Rock River Arms AR15 Upper Receivers to help you extract every bit of functionality capable out of your favorite weapon. Buying a substitute Rock River Arms AR15 Upper Receivers is very essential if you're intending to entering tournaments with your weapon and every single half a second establishes the champ. If you are uncertain about which Rock River Arms AR15 Upper Receivers might go best on your firearms, all you need to do is consult our professionals. We offer an excellent staff of product specialists which is thrilled to assist in whatever way they are able to by answering questions or presenting suggestions and giving helpful pointers in relation to Rock River Arms, AR15 Upper Receivers and other goods we've got. Shop with us for optimum brands and even better costs, as well as get free shipping on orders above $49.image

49 Products in Rock River Arms AR15 Upper Receivers

reset
Sort by
Most Popular +
  • Most Popular
  • Price: Low to High
  • Price: High to Low
  • Avg. Rating: High to Low
  • Price Per Count: Low to High
  • Price Per Count: High to Low
  • Most Reviewed First
  • Savings % Off
  • Bonus Bucks %: High to Low
  • Bonus Bucks %: Low to High
  • Newest First
  • A to Z
  • Z to A
Show
60 +
  • 20
  • 60
  • 120
  • 240
Image of Rock River Arms National Match A4 .223 Wylde Completed Upper 3 models Rock River Arms National Match A4 .223 Wylde Completed Upper (1) As Low As (Save Up to 16%) $599.99
Image of Rock River Arms National Match A4 Competition .223 Wylde Completed Upper 2 models Rock River Arms National Match A4 Competition .223 Wylde Completed Upper (3) As Low As (Save Up to 13%) $639.99
Image of Rock River Arms Coyote Carbine .300 AAC Blackout Completed Upper Rock River Arms Coyote Carbine .300 AAC Blackout Completed Upper List: $715.00 (Save 12%) $625.99
Image of Rock River Arms A4 Varmint .223 Wylde Completed Upper 5 models Rock River Arms A4 Varmint .223 Wylde Completed Upper (5) As Low As (Save Up to $55.01) $569.99 Best Rated
Image of Rock River Arms Mountain Pistol 10.5in Upper Rock River Arms Mountain Pistol 10.5in Upper List: $530.00 (Save 16%) $443.99
Image of Rock River Arms A4 .223/5.56mm Completed Pistol Upper 7 models Rock River Arms A4 .223/5.56mm Completed Pistol Upper As Low As (Save Up to 15%) $429.99
Image of Rock River Arms Carbine .350 Legend Completed Upper Rock River Arms Carbine .350 Legend Completed Upper List: $655.00 (Save 10%) $589.99
Image of Rock River Arms Coyote Rifle .223 Wylde Completed Upper Rock River Arms Coyote Rifle .223 Wylde Completed Upper (4) List: $655.00 (Save 10%) $589.99
Image of Rock River Arms National Match A4 Half .22 Long Rifle Completed Upper Rock River Arms National Match A4 Half .22 Long Rifle Completed Upper (2) List: $670.00 (Save $60.01) $609.99
Image of Rock River Arms ATH V2 .223 Wylde Completed Upper Rock River Arms ATH V2 .223 Wylde Completed Upper List: $655.00 (Save 10%) $589.99
Image of Rock River Arms Carbine .223/5.56mm Completed Upper w/Gas Block Rock River Arms Carbine .223/5.56mm Completed Upper w/Gas Block List: $460.00 (Save $40.01) $419.99
Image of Rock River Arms Entry Tactical .223/5.56mm Completed Upper Rock River Arms Entry Tactical .223/5.56mm Completed Upper List: $585.00 (Save $45.01) $539.99
Image of Rock River Arms R3 Competition .223 Wylde Completed Upper Rock River Arms R3 Competition .223 Wylde Completed Upper List: $715.00 (Save $65.01) $649.99
Image of Rock River Arms Carbine SS .350 Legend Completed Upper Rock River Arms Carbine SS .350 Legend Completed Upper (4) List: $655.00 (Save $60.01) $594.99
Image of Rock River Arms Left Handed RRAGE 2G .223/5.56mm Completed Upper 2 models Rock River Arms Left Handed RRAGE 2G .223/5.56mm Completed Upper As Low As (Save Up to 13%) $399.99
Image of Rock River Arms Tactical Carbine .22 Long Rifle Completed Upper Rock River Arms Tactical Carbine .22 Long Rifle Completed Upper (2) List: $540.00 (Save $40.01) $499.99
Image of Rock River Arms Predator Pursuit .223 Wylde Completed Upper 2 models Rock River Arms Predator Pursuit .223 Wylde Completed Upper (2) As Low As (Save Up to $55.01) $579.99
Image of Rock River Arms National Match A2 .223 Wylde Completed Upper Rock River Arms National Match A2 .223 Wylde Completed Upper (1) List: $850.00 (Save 13%) $739.99
Image of Rock River Arms Predator HP A4 .308/7.62X51mm NATO Completed Upper 2 models Rock River Arms Predator HP A4 .308/7.62X51mm NATO Completed Upper As Low As (Save Up to 15%) $859.99
Image of Rock River Arms 20in Predator HP Upper V2 Rock River Arms 20in Predator HP Upper V2 List: $1,000.00 (Save 10%) $899.99
Image of Rock River Arms X-1 .223 Wylde Completed Upper 2 models Rock River Arms X-1 .223 Wylde Completed Upper (2) As Low As (Save Up to $70.01) $709.99
Image of Rock River Arms Tactical Carbine .458 SOCOM Completed Upper Rock River Arms Tactical Carbine .458 SOCOM Completed Upper List: $899.99 (Save 12%) $789.99
Image of Rock River Arms FESP .223 Wylde Completed Upper Rock River Arms FESP .223 Wylde Completed Upper List: $805.00 (Save $65.01) $739.99
Image of Rock River Arms CLB .458 SOCOM Completed Upper Rock River Arms CLB .458 SOCOM Completed Upper List: $810.00 (Save $70.01) $739.99
Image of Rock River Arms Varmint A4 .308/7.62X51mm NATO Completed Upper Rock River Arms Varmint A4 .308/7.62X51mm NATO Completed Upper List: $775.00 (Save $65.01) $709.99
Image of Rock River Arms Mid-Length A4 .450 Bushmaster Completed Upper Rock River Arms Mid-Length A4 .450 Bushmaster Completed Upper (1) List: $705.00 (Save $65.01) $639.99
Image of Rock River Arms National Match A4 Competition Trainer .22 Long Rifle Completed Upper Rock River Arms National Match A4 Competition Trainer .22 Long Rifle Completed Upper List: $750.00 (Save $70.01) $679.99
Image of Rock River Arms Coyote Carbine .223/5.56mm Completed Upper Rock River Arms Coyote Carbine .223/5.56mm Completed Upper List: $610.00 (Save $50.01) $559.99
Image of Rock River Arms A4 .450 Bushmaster Completed Upper 2 models Rock River Arms A4 .450 Bushmaster Completed Upper (4) As Low As (Save $60.01) $579.99
Image of Rock River Arms Mid-Length A4 .308/7.62X51mm NATO Completed Upper Rock River Arms Mid-Length A4 .308/7.62X51mm NATO Completed Upper (1) List: $620.00 (Save $50.01) $569.99
Image of Rock River Arms X-1 .308/7.62X51mm Completed Upper 2 models Rock River Arms X-1 .308/7.62X51mm Completed Upper As Low As (Save Up to 10%) $849.99
Image of Rock River Arms A4 9MM Luger Completed Upper 4 models Rock River Arms A4 9MM Luger Completed Upper (1) As Low As (Save Up to $50.01) $429.99
Image of Rock River Arms Elite Carbine A4 .223/5.56mm Completed Upper Rock River Arms Elite Carbine A4 .223/5.56mm Completed Upper List: $580.00 (Save $50.01) $529.99
Image of Rock River Arms RRAGE 3G .223/5.56mm Completed Upper Rock River Arms RRAGE 3G .223/5.56mm Completed Upper List: $649.99 (Save 17%) $539.99
Image of Rock River Arms BT-3 Completed Upper Receiver 4 models Rock River Arms BT-3 Completed Upper Receiver As Low As (Save Up to 10%) $899.99
Image of Rock River Arms Carbine A4 9MM Luger Completed Upper Rock River Arms Carbine A4 9MM Luger Completed Upper List: $470.00 (Save $35.51) $434.49
Image of Rock River Arms Mid-Length A4 9MM Luger Completed Upper Rock River Arms Mid-Length A4 9MM Luger Completed Upper List: $470.00 (Save $40.01) $429.99
Image of Rock River Arms A2 National Match Upper Receiver Assembly with National Match 1/2x1/2, .040 Hooded Aperture Rear Sight Rock River Arms A2 National Match Upper Receiver Assembly with National Match 1/2x1/2, .040 Hooded Aperture Rear Sight List: $359.99 (Save 22%) $279.99
Image of Rock River Arms A2 National Match Upper Receiver Assembly with National Match 1/4x1/4, .030 Hooded Aperture Rear Sight Rock River Arms A2 National Match Upper Receiver Assembly with National Match 1/4x1/4, .030 Hooded Aperture Rear Sight List: $359.99 (Save 22%) $279.99
Image of Rock River Arms Forged A2 Upper Receiver Assembly Rock River Arms Forged A2 Upper Receiver Assembly (5) List: $265.19 (Save 13%) $229.99 Best Rated
Image of Rock River Arms Forged A2 Stripped Upper Receiver Rock River Arms Forged A2 Stripped Upper Receiver (1) List: $216.99 (Save $17.00) $199.99
Image of Rock River Arms EOP Varmint .223 Wylde Completed Upper 5 models Rock River Arms EOP Varmint .223 Wylde Completed Upper (1) As Low As (Save Up to $70.01) $589.99
Image of Rock River Arms A2 National Match Upper Receiver Assembly with National Match 1/4x1/4, .040 Hooded Aperture Rear Sight Rock River Arms A2 National Match Upper Receiver Assembly with National Match 1/4x1/4, .040 Hooded Aperture Rear Sight List: $359.99 (Save 22%) $279.99
Image of Rock River Arms .308/7.62X51mm Completed Billet Upper Rock River Arms .308/7.62X51mm Completed Billet Upper List: $1,005.00 (Save $85.01) $919.99
Image of Rock River Arms A2 National Match Upper Receiver Assembly with National Match 1/2x1/2, .030 Hooded Aperture Rear Sight Rock River Arms A2 National Match Upper Receiver Assembly with National Match 1/2x1/2, .030 Hooded Aperture Rear Sight List: $359.99 (Save 22%) $279.99
Image of Rock River Arms Operator ETR .308/7.62X51mm Completed Upper Rock River Arms Operator ETR .308/7.62X51mm Completed Upper List: $890.00 (Save $77.20) $812.80
Image of Rock River Arms Standart A4 .308/7.62X51mm NATO Completed Upper Rock River Arms Standart A4 .308/7.62X51mm NATO Completed Upper List: $630.00 (Save $40.01) $589.99
Image of Rock River Arms Left Handed RRAGE .223/5.56mm Completed Upper 3 models Rock River Arms Left Handed RRAGE .223/5.56mm Completed Upper (1) As Low As (Save Up to $34.01) $409.99
Image of Rock River Arms Mountain .223/5.56mm Completed Pistol Upper Rock River Arms Mountain .223/5.56mm Completed Pistol Upper List: $625.00 (Save $45.01) $579.99
reset
Show
60 +
  • 20
  • 60
  • 120
  • 240
Rock River Arms AR15 Upper Receivers Product Lines

Filter by:

Unfortunately, the item(s) selected is out of stock. Please update your specifications to see more results.

Deals

reset

Categories

reset

Brands

reset
Price
reset
From $
—
To $

    Made in USA

    reset

    Customer Reviews

    Related Links

    Compare (0)
    1 item has been added
    Add at least two items to compare