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80 Percent Arms Billet 80% Lower - AR15

80% Arms Billet AR15 80% Lower

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MSRP $210.00
SALE PRICE: $155.00
Savings: $55.00


Stock Status :(Out of Stock)

Product Code: 80ABL


SEE "CHART B" tab below:

Description CHART B

80 Percent Arms Billet 80% Lower Receiver

We can ship this 6061 lower to your door because 80% lowers are not considered firearms by the ATF. Feel the rewarding satisfaction of creating your own lower receiver - secure yours today.


  • Full mil-spec part compatibility ensures maximum rifle customization
  • Withstands the harshest punishment from any situation using ultra-tough design, precision machined from aircraft grade billet aluminum for superior strength
  • Broached, flared magwell aids with faster, easier magazine reloads
  • Heavy-duty, integral trigger guard enables winter use with gloves
  • Unique, breakthrough design for easy bolt catch installation with a regular punch eliminates need for an expensive, special tool
  • Rear take down lug pocket completed
  • Lifetime warranty against manufacturing defects guarantees impeccable quality

Please note: Some states may not allow you to legally manufacture a firearm without a serial number (like the state of NJ and Washington DC). Please be sure to do your due diligence and make sure you are following your state and local laws before attempting to manufacture a firearm. This is not intended and should not be construed as an advertisement or offer for sale of any of our products to New Jersey or Washington DC residents or any person in New Jersey or Washington DC.

Average Rating: Average Rating: 4 of 5 4 of 5 Total Reviews: 4 Write a review »

  1 of 1 people found the following review helpful:
2 of 5 Your upper will wobble February 2, 2018
Reviewer: Anonymous Person from CA United States  
I mill my lowers and only reason I buy 80% - I can presisely match lower to my upper.

This lower has rear cavity milled and tolerance is way too wide. Pin holes are also oversized. Any upper you use it will have excessive play.

I bought quite few Cerro lowers on this site and they are perfect fit after carefull machining.

IMHO this lower is waste.

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  0 of 1 people found the following review helpful:
5 of 5 1st review January 12, 2018
Reviewer: Anonymous Person from Hudson, CO United States  
The first review make's no sense. How is the trigger guard causing a short circuit. ? This makes absolutely no sense. . I run CNC for a living(35 yrs) I've never heard of this .  I've bought a few of these from RTBA and have been totally satisfied with them but this review makes no sense

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  1 of 2 people found the following review helpful:
4 of 5 Very nice April 30, 2017
Reviewer: Matt V from Central VA United States  
I love the machined "unfinished " look of this lower and can't wait to complete my build. Be advised if you are using a CNC machine to complete your build the trigger guard will short out the circuit with aluminum chips unless you keep blowing them clear as it's milling.   I had to put a double layer of plastic underneath to keep it from contacting and once the chips built up enough to complete the circuit the machine stopped.

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  1 of 2 people found the following review helpful:
5 of 5 Easy job September 8, 2016
Reviewer: 2sheds from DPRK (Demokratik Peoples Republik of Kalifornia)  
I have ordered other 80% lowers of the forged variety. This is softer material and, of course, easier to mill. In fact, The milling with the router took about half a long as the forged lower so if your time is worth more to you than the approx $30 to $40 savings then this is a good deal.  
All-in-all, dealing with Right to Bear Arms and Supply is the real difference as they are an exceptional company to purchase from. They give excellent and quick support to those of us trapped behind enemy lines on the left coast as part of the underground resistance.

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