This isnt a standard m600 clone. It's mounted onto a clone ligntbar, so if you attach it to your rail it pushes the light forward, useful for suppressors or longer barrels, prevents the can from creating a large shadow. 

Comes with original mount. 

I've also adjusted the torch so you could remove the bar and direct mount it to an mlok rail. Is a home done mod but when attached can't be seen. Comes with the pressure switch as per the picture. There is a nick in the wire, hence the tape but doesn't affect function.

Price is all in posted. £30