WHAT IS AN AR 15 80% LOWER RECEIVER? An 80% lower receiver could be defined as a piece of Aluminum which has been partially completed to a certain point.  With readily available tooling from local hardware store and the right techniques, the 80% lower can be transformed into a completely finished lower receiver.

IS FFL REQUIRED TO BUY 80% LOWER RECEIVER? NO.  You can buy an 80% lower receiver directly, without any paperwork.

IS FFL REQUIRED TO BUILD A FIREARM FOR PERSONAL USE? NO. You are building the firearm for yourself for your own personal use which is legal under the Gun Control Act of 1968. This is on the ATF’s website under their FAQ page. You can see it here http://www.atf.gov/firearms/faq/firearms-technology.html .It is not required to be transferred through a Federal Firearms License Dealer with all the federal paperwork like it is finished counterpart, the completely finished lower receiver.  These factors make for easy purchasing for home gunsmiths and hobbyists for personal use and as long as the following laws are met:

-You can legally own the firearm in question in the state of your residence.
-You must build the firearm for your personal use and for yourself only.
-It is a good idea to mark your firearm somehow so that should it ever be lost or stolen you have a way to identify it and report its loss to your local law enforcement. Please check your local and state laws.

WHAT TOOLS ARE REQUIRED OR RECOMMENDED TO FINISH MY LOWER RECEIVER? Building an 80% lower receiver into a finished lower receiver can be done using a variety of readily available tools and the proper techniques. The most popular methods involve using a drill press or milling machine. Once you have chosen the type of drill you wish to use, you will also need a 80% lower jig set which we stock for your convenience. The jig helps ensure that the 80% lower is properly machined and that high tolerances are initiated and maintained.

DOES THE 80% LOWER RECEIVER INCLUDE INSTRUCTIONS? NO, but with a simple search on the internet there are various sites with instruction to complete your 80% lower receiver.

WHAT CAN THE 80% LOWER RECEIVER BE USED FOR? It is a great starting point for many firearm calibers including, but are not limited to:

  • .223-5.56mm
  • .308mm
  • 6.8 SPC
  • 7.62x39mm
  • 5.45x39mm
  • 6.5 Grendel
  • .50 Beowulf
  • 9mm
  • .45 ACP

WHAT CAN THE AR-10 80% LOWER RECEIVER BE USED FOR? AR-10 80% lower receiver can be used for completing the best sniper rifle AR-10, LR-308 for caliber .308 Winchester and 7.62x51. It is the best firearm for the long distance shooting, and is known to be the most powerful.

TERMS OF SERVICE  Due to the nature of the products offered for sale through moriartiarmaments.com by MORIARTI ARMAMENTS LLC, all sales are final and are non-returnable, unless there are warranty issues.

SHIPPING/DELIVERY MORIARTI ARMAMENTS LLC is open Monday – Friday 11am – 4pm Eastern time. Our shipping is done between these times. We only use shipping services that provide tracking confirmations. Once your item is ready to ship, you will receive an email confirmation with your tracking information. IT IS CLIENT'S RESPONSIBILITY TO TRACK THE PACKAGE AND MAKE ARRANGEMENTS WITH CARRIER TO RECEIVE THE PACKAGE SAFELY. MORIARTI ARMAMENTS TAKES NO RESPONSIBILITY FOR PRODUCTS LEFT UNATTENDED. PLEASE INQUIRE ABOUT INSURING YOUR ITEM BEFORE IT LEAVES OUR FASCILITIES.


Your have placed an order, so you are wondering what happens now? Please visit our Terms and Conditions to find an answer.

PRIVACY POLICY MORIARTI ARMAMENTS LLC is committed to protecting the privacy of the personal information of our customers, employees, contractors, and other stakeholders. The following policy will provide you with an understanding of how we operate our web site, how we collect information from you, and how it is used by us. This policy may be revised at any time.

MORIARTI ARMAMENTS LLC does not collect personal information from a visitor to our site unless the visitor intentionally provides it or otherwise provides express consent. Any information that is collected voluntarily from visitors is used in an effort to better meet the needs of its customers. Additionally, the information is used solely by MORIARTI ARMAMENTS LLC  its affiliates, and those companies contracted by MORIARTI ARMAMENTS to deliver requested information and services. We never sell any information to third parties.

We may also request your email address or mailing address for the purposes of conducting a survey or to provide additional services. Whenever we request this identity of a visitor, we will clearly indicate the purpose of the inquiry before the information is requested. We maintain a strict “No-Spam” policy, however, from time-to-time we may send an email announcement, news, or other promotions regarding MORIARTI ARMAMENTS services and products.