AR Lower Receivers for Sale
The AR lower receiver is the serialized component of an AR-15 — legally defined as the firearm itself, requiring transfer through a licensed FFL dealer. The lower houses the trigger group, magazine well, pistol grip, and buffer system, and accepts any mil-spec upper receiver assembly. A quality lower is the foundation every serious AR build deserves.
Stripped vs. Complete Lowers
- Stripped Lower Receivers — The serialized housing only. Requires a lower parts kit (LPK), pistol grip, buffer assembly, and stock to become a complete lower. Maximum flexibility for custom builds where you select every component
- Complete Lower Receivers — Fully assembled with trigger group, pistol grip, buffer, and stock. Drop an upper on and you have a complete, functional rifle. Best value when you want to shoot immediately
Top AR Lower Brands
- Aero Precision M4E1 — Enhanced flared magwell and improved upper-to-lower fit. One of the most popular stripped lowers on the market
- Radian Weapons A-DAC — Ambidextrous controls integrated at the forged level. For builders who want ambi function without aftermarket modifications
- Sons of Liberty Gun Works (SOLGW) — Premium American-made forged lowers with quality mil-spec standards and excellent customer support
- Noveske Chainsaw — Premium billet lower from one of the AR industry's most respected builders
All lower receivers require FFL transfer. Buyers must be 18 or older.
Frequently Asked Questions — AR Lowers
What is a stripped AR lower receiver?
A stripped lower receiver is the serialized component of an AR-15 — legally defined as the firearm requiring FFL transfer and background check. The stripped lower is just the housing with no other components installed. You add a lower parts kit trigger group pistol grip buffer assembly and stock to complete it. A stripped lower is the starting point for all custom AR builds.
What do I need to complete a stripped AR lower?
To complete a stripped lower receiver into a functional rifle you need a lower parts kit (trigger hammer disconnector safety selector and all associated pins and springs), pistol grip, buffer tube, buffer and buffer spring, stock or brace, and a complete upper receiver assembly. The lower parts kit and buffer assembly are the most critical components to source from quality manufacturers.
Is a stripped lower receiver the same as a complete lower?
No. A stripped lower receiver is just the serialized housing — no other components included. A complete lower receiver has the trigger group pistol grip buffer tube and stock fully installed and is ready to accept an upper receiver. Complete lowers cost more but save time and ensure all components are properly fitted and function-tested by the manufacturer.