Cheap. one or two time use product - AIM Sports Cartridge Laser Bore Sight

Price is right, quality is NOT. DIRECTLY out of the package it's broken. I fiddle with it for an hour and repair it. Works for about 2 mins, THEN, included batteries DIE.So I Run out to the store, get new batteries, put new batteries in, screw together, AND it breaks again in another spot. Another hour repair with super small tools and I get Get it working again. Insert it into the bore, sight bore, remove. Place gently into included carry case. Went shooting. Bore sight actually got me on paper first shot. So at least it works. The next week, I purchase a new gun, same caliber. Get out the trusty bore sight, breaks a 3rd and final time upon me attempting to turn it on. I sent it flying right into the river never to be seen from again. Some fish proly got ahold of it and it broke on him some more.