As far as I know, the Silver Bullet is not a regulated
mod. Meaning, it contains nothing more than a switch soldered to a
threaded connector. For the perks, number 1 would be the finish. The SB is powdercoated and is very durable against scratches. #2, there was obviously some thought and engineering that went into the switch and how it mounts to the body. #3 is the name. Almost everyone on this forum know what a Silver Bullet is.
I long to have a lime green SB someday. But, until then, I opted for the Bolt from Smoketech. It has a similar style and look, but was obviously ripped off the design of the SB and corners were cut to keep costs down. But, I'm happy with it. The day that my Bolt dies, I will order the Silver Bullet I longed for.