No more Heizer name attached to the Double tap. The Double Tap pistols owners and its first builder of the pistol have parted ways and double tap now has Azimuth Technologies takeing over the production of the pistol and some design upgrades.
It is being shipped to early pre-order buyers and BUD'S has or had sold some. But with supposedly many many thousands of back orders it may be some time before you can lay your paws on one. Seems all companies advertise far in advance of the product being ready to sell.
Hang in there.