Seymour Duncan Mark Holcomb signature Alpha and Omega pickups for seven string – review | Lone Phantom
Seymour Duncan 7/8 String Soapbar Size Now Available - Guitar Pickups, Bass Pickups, Pedals
Seymour Duncan 11102-25-P-BLK-7STR SH6-7STPN-BK Distortion 7 String Passive Neck Pickup in Black - Canada's Favourite Music Store - Acclaim Sound and Lighting