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

You can’t beat this! Especially for the $$

by -

Ordered 2 of these and they look AMAZING! Installed a LPK in one, everything was to spec. Can’t wait to get one fully built and get it to the range! If you’re on the fence because of the low price, DO IT! You won’t regret it.

Extremely Well Made Lower

by -

Excellent machining and finish on this lower, can't beat it for the price. Only issue is I can't use the Magpul B.A.D. lever because of the extended bolt-catch pin housing. Unfortunately, the lever has become part of my competitive shooting gear, so I will have to set this lower aside for a later build.

Very Nice Receiver

by -

I was a little skeptical about this receiver given the feedback about magazines being a very tight fit and the price drop from $129 to $65 when I bought it. I have to say that it is a very nice receiver and I have had no problems with any magazine, pmag or metal going into the mag well smoothly and dropping out without obstruction when pushing the mag release. I will buy again and will recommend.

Dam nice lower


Looks great 👍this is going to make a nice gun

Great Lower, Better Price


Some small details that make this price point even better:
<br>1. Bolt catch roll pin is included and is in a screw format.
<br>2. No need to install trigger guard and potentially damage your receiver trying to get the pin in.
<br>3. There’s a groove for your trigger finger to rest when not ready to fire and that alone makes this design great as that is not included in some of the other lowers on the market.
<br>This will be my go-to lower to start my builds from now on. Cannot beat it.

Billet on a budget

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I have three 17 Design billet lowers. All three are perfect! This last one is no different!


by -

Tight tolerances. Not necessarily milspec but allen screw on bolt release is a big plus. Mag release is not flush gotta fix on that. Otherwise strong build.

Ar 15 lowers

by -

Excellent quality, above and beyond what many other manufacturers produce

Nice lower

by -

Everything about this lower is really nice I bought one to see how it is then I bought 2 more, it has the adjustment for your upper I thought might change out a few of more cheaper lowers but overall no complaints

Nice Lower

by -

This is a great lower with all the important features like a threaded mag catch pin, lower tensioning screw, and it's a billet as well, at a very attractive price point. Nice lines, and a pretty good finish. (I gave it 4 stars because the anodizing wasn't "just perfect", but this isn't a fashion show, is it?