Yes it is. I wanted to have that option available.
Usually, I'm used to standard pots (push/pull or not) having 3 solder lugs. This, however, has 6. There are 3 on top, 3 on bottom. Either way I test, they are 500k, so that's fine with me.
It appears to be a dual pot, like a blend, but with no center detent. I'm sure if I wanted, I could wire it as such and blend 2 pickups.
Specifically, though, I'm wondering whether to solder up one set of the lugs when I use the pot as just a volume control... or if I should jump both sets.
Here's a better picture: