17 Design Billet AR-15 Stripped Lower Receiver - Black

Manufactured by 17 Design & Mfg.
SKU: 17-17D-00-NFDLAR15-1
MPN: 17-17D-00-NFDLAR15-1
Manufactured by 17 Design & Mfg.
110 Reviews
$69.99 $129.99

Out of Stock

Items that are regulated by the ATF have restrictions and requirements: 
•Your entire order will ship only to a Federal-Firearm License holder.
•Please contact your local FFL prior to placing your order to ensure they are still accepting transfers.
•A copy of your order/invoice as well as the current FFL license for your local dealer must be emailed to ffl@primaryarms.com.



Start your next AR-15 build with this Mil-spec black anodized billet AR-15 aluminum receiver! This AR-15 stripped lower is made in Oklahoma City, OK by 17 Design and Manufacturing, a company that equips military and law enforcement with small and medium machining capabilities as a contract manufacturing and engineering focused shop. Now they are selling billet lower receivers to the public.

  • Mil-Spec dimensions
  • Machined from a billet of 7075-T6 aluminum
  • Stripped
  • Black hardcoat anodized
  • Integral trigger guard
  • Threaded bolt catch roll pin

Save money by building your own rifle from parts. Learn about how the firearm functions by assembling it yourself. Hand pick each component to suit your precise needs. 

Accuracy in machining is crucial to ensure your receiver will be compatible with parts from other manufacturers. 17 Design and Manufacturing has razor thin tolerance levels and personally oversees the development, design and machining of every part that comes off the line. They're not like every other manufacturer. 

Whether you're stocking up for a rainy day or looking to get started on your next build, grab one of these billet stripped lowers while supplies last!
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Brand17 Design & Mfg.
Caliber MarkingMulti-Caliber
Receiver Material7075-T6 Aluminum
Trigger Pin DiameterMIL-SPEC .154


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Good quality and great price.

It gggrrreat!


Of course PA ships quickly and efficiently.
<br>I absolutely love this billet. The accentuated features are really useful and have purpose.... also add to the looks. For example the flare and raise feature forward of the finger guard looks good AND is a thoughtful design feature that attracts your trigger finger as a rest point.
<br>They've also taken a note from Aero with the bolt catch hex screw completely eliminates the need for a roll pin and all the frustration involved with those evil things.
<br>Love it... looks great and functions wonderful.

AR15 Billet Stripped Lower

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This is as good as the Aero lowers. I am always a bit apprehensive when the assembly is done and you slap it on the upper hoping it will fit. This one did perfectly.

A Sexy Beast!!!

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Stunning for the price point! All my newer builds use this as the body. Excellent tooling and fit on variety of calibers. With the 12% off, to boot, you will not find a better value for the money. I paid double for these early on, and they are still worth every penny. Now they're cheaper, I stocked up! HAPPY.

Stripped lower

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My second one, fit and finish perfect, great quality, great price. PA great company to deal with

Tale of two receivers

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This is my 3rd 17 Design receiver over the last year. The first two I bought are perfect. The most recent has about 12 blemishes, none of these appear to be a concern, just cosmetic. Probably a sign of producing as many as they can to take advantage of the market. Over all 17-Design function great,

Solid Lower

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This is a well made billet lower with tension screw included. No machine marks, flared magwell, and tight tolerances. For the price, it can't be beat. I will order again in the future.

My 4th

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I have had quite a few $200 stripped lowers. I would rather buy these from now on. Not as good anodizing but great machine and fit. the anodizing is more than acceptable especially for the low price.

Beware the sharp angles

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I purchased a number of these to build out. They are fairly nice, not nearly as nice as Aero lowers, especially the enhanced Aero lowers. I am having a problem with the sharp, to the point of cutting the skin, angles on the top of the trigger well. Every other lower I've used mills this area down somewhat but these are very, very acute to the point of cutting the top of my trigger finger if I don't take care. Seems a careless design to me. I contacted 17 Design regarding the issue. They asked for pictures, which I sent, but never heard back from them. For my money I'm sticking with Aero or another manufacturer. You mileage may vary.
<br>Nice to hear that 17 Design got back with you on those lowers. We would happy to help you if you have any other issues.

Super easy to build

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Great lower, well made, very easy to finish the build. Can’t wait to buy another one. Highly recommend.