out of stock

AR-15 80% Lower Receiver - Billet - Red


Out of stock


Have you been itching to build an AR-15? Well, this is your sign that's now's the time. This sleek design of the Modulus Arms AR15 80 lower offers tight tolerances for a build that can be great for virtually anything — whether the intended purposes is for matches in competitive shooting, home defense or even if it's just what you use to teach new shooters our AR-15 80 lower was made just for you.


  • Full MilSpec parts compatibility
  • Pictogram safety markings engraved.
  • Ultra-tough 80% lower design, machined from aircraft grade billet aluminum for superior strength
  • Broached, flared mag well for faster, easier magazine reloads
  • Coating is a MilSpec Type III Hard Anodized Black
  • Threaded Bolt Catch (Bolt Catch Screw included).
  • Rear takedown lug pocket completed.
  • *Has Lifetime Guarantee
  • *Has Lifetime Replacement Warranty
  • 100% Made in the USA


Our 80% lower receivers represent the highest quality and best value 80% lowers on the market. They are the only 80% lowers backed by both a lifetime guarantee and lifetime replacement warranty that protects against any type of accidental damage*.

*Excludes damage caused by milling the 80 lower incorrectly and intentionally inflicted damage. 

Shipping Restrictions

We cannot ship this product to any states or major cities that have passed laws restricting these items such as New Jersey, New York, Hawaii, Connecticut, Rhode Island, Washington D.C., Maryland, Illinois, California, Washington, Allenspark Colorado , Coal Creek Canyon Colorado , Eldora Colorado , Eldorado Springs Colorado , Gold Hill Colorado , Gunbarrel Colorado , Hygiene Colorado , and Niwot Colorado, and Denver Colorado.  Laws change often, be sure to check what your State Laws and Local Ordinances are.