This precision machined Fenix picatinny rail tactical flashlight ring is made of 6000 series aluminum. The clever adjustable diameter design allows use with a wide range of flashlights. It includes and universal spacer, to allow any light to be used.

Fits:
With plastic spacer: Flashlight diameter 23.6mm- 24.2mm
Without plastic spacer: Flashlight diameter 25.4-26.0mm