Just so anyone looking at getting a mount for the surefire P2X 500 lumen knows a gear sector 6P 1" mount DOES fit… It’s snug and requires a little bit of work but it will go on. My two other mounts will not do this as the P2X is slightly larger diameter than the Surefire G2X 300 lumen model which is a true 1" barrel. The P2X series are all aluminum and thicker battery barrel.
Figured this might help someone who is looking for light mount mates for the surefire G2X and Surefire P2X & P2XD series lights or is having trouble at 11pm placing one on. Rock on Gear Sector!
Edited: Jason actually answers emails really late at night. The guy never quits!