Depending on what happens with the proposed ban it will likely be later rather than sooner. Many suppliers of slide/bump fire stocks are holding off on shipping out new product. Please contact Buds customer service if you would like a more detailed answer.

My Guess is that if they are not banned they will be a NFA permit item.

There is definitely panic buying going on which will not subside until a decision is made on the legal status. All vendors and not only Buds will be affected as any shipments will be affected by this artificial high demand.