SBR Where Barrel is Attached to Lower Receiver.

[glide]

I am looking into purchasing a SBR lower receiver for my Kriss Vector. It would be purchased on a form 4 directly from the dealer. I currently own the gun in it's rifle configuration.

If anyone has never seen the firearm before I included a link below. Note the barrel is part of the lower receiver. I want to know if it is legal to swap out my existing full length lower with my SBR lower? I can effectively have 2 different guns here which is very appealing, but not sure what the legality is.

http://www.kriss-tdi.com/products/kriss-sbrso-45-acp.html

 

[abomb60]

Which part of the Kriss counts as the gun? That is the piece that is considered the SBR.

 

[glide]

Which part of the Kriss counts as the gun? That is the piece that is considered the SBR.

The lower. But that doesnt really clear up my question about switching them back and forth.

 

[abomb60]

If the lower has the barrel in it and the lower is the serial #'d part then you can switch them back and forth.

Another example of this is the FNH P90/PS90. The "receiver" is the upper part that the barrel attaches too. The stock and FCG are all part of the lower. There are places that sell a new serial #'d upper that people have SBR'd so they can switch between the SBR upper and the 16" upper.

 

[EasyD]

Remember that an SBR is a whole gun. There is no such thing as a SBR receiver. Don't mix your Title I and Title II definition of rifles!

--EasyD

 

[glide]

Remember that an SBR is a whole gun. There is no such thing as a SBR receiver. Don't mix your Title I and Title II definition of rifles!

--EasyD

So let's say I remove the short-barreled-lower from my upper and re-attach the long barrel. I now have a complete Kriss rifle (non-SBR) in its original configuration and...what is the other remaining lower considered? Anything?

 

[EasyD]

Once a rifle, or SBR, has no barrel, it's not a rifle anymore. So, in this particular case, it would be a receiver or frame of a firearm, AKA a Title I "firearm". The fact that it's been registered as a SBR doesn't actually effect anything, except that if someone else tries to file a Form 1/2 on it, the NFA Branch might get a bit confused, so if you made a permanent change, and remove the short barrel, notifying the ATF would be a good idea.

I have no idea why people buy a second receiver for ARs, PS-90s, etc, and register one as a SBR and keep the other Title I. Its really a way to set yourself up for being accused of constructive possession. If you're worried about taking the rifle to a state that bans NFA, just put a long barrel on it, and its Title I again.

--EasyD