Product function and build quality - Tiger Rock 9mm Cartidge Laser Bore Sighter

Received the product in a timely manner. The package said it was to include batteries (none included). The product function does not allow for the item to be used as described. The build tolerance is not able to shine the laser down the bore of the barrel. it tilts over and reflects. I attempted to move the position but also noticed that the laser sight was not aligned correctly. Do not recommend.