Bruce took it down to 12.99 and I think he has a discount code. These CAN be made for pretty cheap but you have to source the correct size siringes, run out and buy a pipe cutter then mess with cutting the carto, cutting the syringes top and bottom, making sure it slides over the cut carto nice and snugly and it doesn't leak and can also be removed from the battery without twistign off the syringe itself >.>...and ALSO, if the modder of these has reseated the filler ring properly then you can use it with no problems...