Product Code: LOWER-SET-AR15

AR-15 Forged Upper / 80% Lower Matched Set - Black

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5D Tactical brings you the precision CNC machined upper and lower AR-15 receiver set that offers superb strength and versatility for your next AR build project. We provide firearm enthusiasts the capability to quickly and easily finish their custom AR-15 builds with our range of innovative parts including upper receivers and 80% lower receivers. Our forged M4 flat top matched upper and lower receiver set takes the guesswork out of your next build.


We offer a lifetime warranty on all our manufactured products, ensuring that your build will be of top-notch quality. Start building your own lower receiver now, without the need for a Federal Firearms License. Remember to always abide by federal, state, and local laws prior to purchasing.


  • CNC machined from 7075-T6 Forged Aluminum
  • High-quality Type III Class 2 Hard Coat Anodized Finish
  • SEMI/SAFE safety selector engravings in the lower receiver
  • Lower receiver accepts all Mil-Spec parts & accessories
  • Forged upper accepts Mil-Spec forward assist and ejection cover plate
  • Pre-milled rear shelf, broached magazine well and open trigger guard in the lower 
  • M4 feed ramps

Our AR-15 upper and lower set is carefully machined to ensure the best performance and serves as a great foundation for a quality AR-15 rifle. For a truly AR-15 custom build, pick up our matched upper and lower receiver set from 5D Tactical.

Built for Superior Performance

Our 5D Tactical team brings years of expertise into firearm product design and development, ensuring that you get only the best custom AR build parts at the most competitive prices. Our Forged M4 flat top matched upper and lower AR-15 receiver set is built for superior performance ensuring a perfect fit and simplicity in use.

Order Quality Custom AR-15 Build Parts

At 5D Tactical, we carry a variety of AR parts and accessories to help you complete your next build such as upper receivers, 80% lowers, universal jigs and other parts. With our experience, capability, innovative technology and extensive product line, you’re assured of finding the best equipment you need for building your AR-15 rifle.

To get started with your AR-15 build, order our universal router jig, matched AR-15 upper and lower set and tools straight from our online store or call us today at 508.834.4223.

Shipping Restrictions: 

This item is restricted from shipping to the following: California, Colorado, Connecticut, Hawaii, Illinois, Maryland, Nevada, New Jersey, New York, Oregon, Philadelphia Pennsylvania, Rhode Island, Washington, Washington D.C.

Under California law, this product is or contains an unserialized “firearm precursor part” and cannot be sold into the State of California. 5D Tactical cannot accept any orders of this product for shipment to the State of California, or to any customer who is a resident of the State of California.