AR complete upper - "Rifle" or "Accessory"?

[ForestGnome]

If I wanted to sell a complete AR upper, should I put it in the Rifle section or the Accessory section?

 

[rOmiLaYu]

Either.

 

[jwhited]

One or the other, but not both.

 

[Scout706]

It is a part, it can be mailed, even.

 

[November Sierra]

Accessory. The lower is the actual firearm.