Benchrite Super Ball Lube is an excellent lubricant for rail gun tops. It is an effective silicone lubricant for Delrin balls and is even recommended by Jay Young.
This lubricant comes in a application bottle with a dropper, making it very easy to apply the right amount to every ball.
Each bottle is 1/2 ounce and will probably last most railgun shooters several seasons if one drop is applied to each Delrin ball after every couple of matches.
Try this excellent ball lube today and experience the smoothness of Benchrite Super Ball Lube.