Yes, you can mount it. What you'll need is a std. 1" scope ring and then you can go with a Surefire barrel mount -
Either the 659 or 660 style mount are available as seperate components, the 659 (M16) mount will actually do double duty as the 660 mount.
Other mounting solutions are: Front sight housing accessory mounts, various rail designs that be attached directly to your forearm and there are many new railed h.guard assemblies on the market today.