Can I buy a lower AR 15?
Ava Robinson
Updated on March 06, 2026
Furthermore, can I ship an AR lower?
Go me. Rifles including lowers, a firearm, (parts) can be shipped by any non licensee via USPS by Ground only or via common carrier, any shipping method, ground or air. If by USPS, the package must not contain any indication of it contents and it is not necessary to declare the package in any way.
Also, are AR 15 lowers universal? The lower receiver of an AR-15 is a more than a part; it is the single piece that every other part revolves around. Modular rifle design developed to adapt to the changing needs of individual soldiers. Lowers are (supposed to be) universal and the parts that go in and on them are interchangeable.
Keeping this in view, can you buy a complete lower receiver?
Yes! California does have certain stipulations that other states don't have (as usual), but it is 100% legal for you to purchase, complete, and own an 80% firearm in the Sunshine State.
Can you buy a lower receiver under 21?
You cannot legally transfer a receiver or a frame to someone under the age of 21. (NFA) firearms, including silencers.