Air Power (though they've long since gotten out of the painball gun business, they're still around)

Erik Pattison's Vector page

The Vector Owners Group (disbanded long ago)

The Old Gun Owners Group

Punisher's Customs - Offers an electro conversion for Vectors

DEZign Bolts - High performance bolts for the Vector and Angel

Dingo Custom Paintball - Offers a .45 frame for the Vector with an integrated vertical ASA