SBR Upper / NFA question

[jp0319]

Ok this may be a stupid question but indulge me I'm new to NFA stuff. Is an SBR upper by itself a controlled item or only when pared with a lower receiver? The reason I as this is could I assemble / purchase a SBR upper before I do the paperwork and just not use it? I was wondering since all the tax stamp info goes on the lower.

[UVvis]

The uppers are not controlled or taxed by themselves. They could be destined for an AR pistol, or for a long permanently attached muzzle device. In both cases, the use would not be a NFA item.

[DrBaker]

Ok this may be a stupid question but indulge me I'm new to NFA stuff. Is an SBR upper by itself a controlled item or only when pared with a lower receiver? The reason I as this is could I assemble / purchase a SBR upper before I do the paperwork and just not use it? I was wondering since all the tax stamp info goes on the lower.

The upper itself is not a NFA controlled item.


It is not okay to assemble it and just not use it if you do not have an appropriately registered lower receiver (SBR, MG, etc).