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.

Shopping Cart
Government Export Restriction Government Export Restriction
Government Restriction Government Restriction
Questions & Answers
Customer Reviews
Most Recent Reviews
Quality product at a great price by Buzzsaw, October 31, 2023
I have yet to take this to the range, but I will say that this looks to be a well-built quality upper! This is my 1st purchase at Optics Planet and shipping was expedient and the item arrived as described. THANKS!!
Most Recent Reviews
This thing is amazing. The shot groups are less than 1 MOA at 110 yards. Rock River really hit one out of the park on this one. Optics planet was quick on delivery and no issues. I have been doing business with them for years. Good folks
Read All 2 Reviews
2 Models Available
Color
All
Search

Product Info for Rock River Arms X-1 .223 Wylde Completed Upper

The Rock River Arms X-1 .223 Wylde Completed Upper was developed to function as the ideal item for anyone in need of a high quality selection..image

These AR15 Upper Receivers from the skilled product professionals at Rock River Arms are made by using dependable and dependable materials, in order to provide you with a product that will be powerful for quite some time. Made using some of the very best available components and design, these AR15 Upper Receivers from the product professionals at Rock River Arms will last you an incredibly long time.

Rock River Arms has been developing high quality merchandise for a number of years, and the Rock River Arms X-1 .223 Wylde Completed Upper is their particular means of demonstrating just how much they are concerned.

Here at OpticsPlanet, we ensure that it is our obligation to receive the best solution for all your specifications, and showcasing the Rock River Arms X-1 .223 Wylde Completed Upper is one thing that we are delighted to offer.

WARNING: California`s Proposition 65

Specifications for Rock River Arms X-1 .223 Wylde Completed Upper:

Manufacturer: Rock River Arms
Caliber: .223 Wylde
Overall Length: 26 in
Barrel Length: 18 in
Barrel Profile: Standard
Barrel Twist Rate: 1-8
Threads per Inch: 1/2x28
Handguard Type: Free-Float
Muzzle Device: Brake
Finish: Anadized
Gas Block Journal Size-Diameter: .750 in
Handguard Length: 17 in
Gun Rail: Full Top Rail
Weight: 5.23 lb
Barrel Material: 416R Stainless Steel
Bolt Carrier Group Included: COM-SPEC
Magazine Included: No
Mount Type: M-LOK

Package Contents:

  • Rock River Arms X-1 .223 Wylde Completed Upper
  • Bolt Carrier Group
  • Charging Handle Assembly

Rock River Arms X-1 .223 Wylde Completed Upper Orderable Models

List of Orderable Models

  • Rock River Arms Completed Upper Receiver, X-1 .223 Wylde, 18 Inch Barrel, 1-8 Twist, 1/2-28 Threat, Free-Float Handguard, Brake, Tan, XAR0700T.V1 , MPN: XAR0700T.V1 , UPC: 842834101344 , Code: 1WN-URC-N223-XAR0700T-V1
  • Rock River Arms Completed Upper Receiver, X-1 .223 Wylde, 18 Inch Barrel, 1-8 Twist, 1/2-28 Threat, Free-Float Handguard, Brake, Black, XAR0700B.V1 , MPN: XAR0700B.V1 , UPC: 842834101337 , Code: 1WN-URC-N223-XAR0700B-V1
Compare (0)