Five-seveN (Accessories - Lasers/Lights)

Insight Technology's M6 Tactical Laser Illuminator (TLI) works well on the IOM and USG models of the Five-seveN, in my experience. Presumably the M3, M3X, and M6X would be similarly compatible/useful.

Laser Devices, Inc. has also produced a Las/Tac with contours specific to the Five-seveN (Like so many things, this seems to be made of unobtanium, though.) Axel Raven claims to have a line on a source of these.

At least one model of LDI's BLAST 2 is also compatible with the FsN.

Axel Raven Company, Inc.
http://www.axelraven.com/
1034 West Indiana Avenue
Spokane, WA 99205
(509) 370-1553 Phone
(509) 324-6352 FAX
FFL/SOT Class III Firearms dealer. Axel Raven, President.