17 Design Billet AR-15 Stripped Lower Receiver - Black
- Mil-Spec dimensions
- Machined from a billet of 7075-T6 aluminum
- 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!
Ratings & Reviews
by Garrett Asbury
Great fit and finish. Uses Allen head screw to secure the bolt release rather than a roll pin. Everything assembled well and has functioned flawlessly to this point.
17 design billet receiver. Thumbs up!
by Double D -
Nice fit and finish. Best deal I have seen in billet. Will buy again.
by Jose Castaneda -
Everything fit into the lower well. The lower mated with the upper as good as any other.
by Kim Bell -
No Issues fast shipping Goes Together Nice No Fit problems Good Machine Work
17 Design Billet Lower
by Mark -
Absolute Quality, at a Great price. Thanks Primary Arms.
by Keith -
For the first problem, I'm going to blame the upper. I had to file down the curved portion of the upper where it seats into the lower in order to get the takedown pin installed. It took about fifteen minutes but I got it together.
<br>The other problem is the bolt catch gap. I didn't think much about it until installing a Magpul BAD lever. There's too much wobble for it to work. The device tends move forward where it locates itself over the bottom left portion of the lower's mag well and doesn't allow the full movement of the lever to effectively lock the bolt. Even manually, I can't pull the bolt back out of battery and manually lock it down without difficulty.
<br>It's a nice lower but I'd rather have a Spikes.
Billet lower at a great price.
by Yanuch -
Billet lower at a great price and fast service; P/A hits another one out of the park!
Tolerances are tight, seems to be very well machined. I have it paired with an 11.3" ballistic advantage barrel and everything is great
by Michael -
Very nice lower receiver. Machining was top notch and everything fit perfectly. Well worth the little extra money over any forged receiver I have used
by CoryJohn -
These lowers rule I have them on 3 different AR platforms including the lower with integrated folding stock. The way it’s made is not too over board but still cuts some weight and i love how the bolt catch is threaded instead if a pin. Will continue buying for sure.