The best thing you can do to ensure continuous fun and accuracy with your blasters, is to care for its bullets properly. You will want to load your blaster with the correct bullets for them to be capable of shooting off in the first place. There are just four kinds of blaster darts available for purchase; Whistler darts, Suction darts, Dart Tag darts, and lastly N-STRIKE ELITE darts.
You will want to be sure that your darts are not exposed, or at least not often, to weather conditions that do not support their continual usage, like rain, snow, and other elements like dirt.