$379.99Original price was: $379.99.$249.99Current price is: $249.99.
98 in stock
🚚 Ships to your local FFL — order online, put your dealer’s address in shipping, and we coordinate the rest. Most firearms ship same or next business day. How buying a gun online works.
The Rankin Industries AR-15 Billet Duty Stripped Lower Receiver is a machined lower receiver for AR platform semi-auto builds. It is part of Rankin Industries, Western Sport’s own brand.
This is a serialized firearm component.
A stripped lower is the starting point for a custom AR build. It gives you control over the trigger, stock, buffer system, and grip you install.
A billet lower starts as a solid block of aluminum that is machined to shape. Forged lowers use a casting process that leaves less flexibility in design. Billet construction allows tighter tolerances and sharper lines.
Some builders prefer billet for aesthetic reasons. Others value the ability to control fit between the upper and lower. Both types function reliably when machined correctly.
What a Stripped Lower Means for Your Build
A stripped lower has no trigger, no stock, no buffer tube, and no furniture. You supply those parts based on your intended use. This approach lets you match the lower to your shooting style and budget.
If you need a complete lower with all internals installed, send us a message to ask about complete lower receivers or gunsmithing assembly services.
Comparing the Rankin Industries Billet Lower to CDNN Stripped Lowers
CDNN Sports is a distributor that sells stripped lowers from various manufacturers. The Rankin Industries billet lower is Western Sport’s own brand, sold directly by us rather than through a distributor network.
Because we sell it directly, questions about tolerances or fit go straight to our gunsmith. Browse our full selection of lower receivers to compare options.
Ordering from Western Sport
Order online and we ship it to the licensed FFL dealer you choose near you — see how buying a gun online works. Western Sport has been a licensed FFL/SOT dealer since 2007, and everything we sell carries the full manufacturer warranty. Questions before you order? Send us a message.
Frequently Asked Questions
Q: Is the Rankin Industries billet lower compatible with mil-spec AR-15 upper receivers?
A: AR-15 stripped lowers are designed to accept mil-spec upper receivers, but dimensional tolerances vary between manufacturers. Send us a message to confirm fit details for your specific upper.
Q: What parts do I need to complete a stripped lower receiver?
A: You will need a lower parts kit with trigger assembly, hammer, disconnector, springs, and pins. You also need a buffer tube, buffer, buffer spring, stock, and pistol grip. Western Sport can assist with parts selection and installation.
Q: How does the FFL transfer process work in Texas?
A: Lower receivers are serialized firearms. You must complete ATF Form 4473 and pass a NICS background check. If you order online, the lower ships to your local FFL.
Q: What is the difference between a stripped lower and a complete lower?
A: A stripped lower has no internal parts, no stock, and no buffer system installed. A complete lower has the trigger group, magazine release, bolt catch, and often the stock and buffer tube already assembled. Stripped lowers cost less and let you choose each component.
Q: Who should buy a billet lower instead of a forged lower?
A: Billet lowers suit builders who want tighter aesthetic lines, specific machining details, or the look of a billet receiver. Forged lowers are more common and often less expensive. Both work reliably in a properly assembled rifle.
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