I recently bought a Surefire M500. This is the older style (prior to the millineum model). The light is built in to the top forend of the handguards for a carbine sized AR.

Does anyone know if there is a way to place the head unit of this light system, onto something that I can mount onto my railed M4?

I am thinking of using it for two different uppers, one railed and one with no rails (obviously).

I recall seeing a post where someone was making their own light bodies. Was it on here or the "other" site.

Thanks

Here is a similar picture



The head unit is a bit different looking, and mine doesn't have the thing sticking forward on the right side front.