Love the new IWC Light Mount for the Benelli M4. Secures the Surefire M600 or Streamlight Protac Rail 2 lights directly to the barrel lug, leaving the barrel and the magazine tube untouched. I like that the light, which is intended for use on long guns, attaches directly to the mount without having to use rings. It makes for a very well designed, sleek mount. The mount is well made with excellent fit and finish. I was impressed with the IWC customer service, which provided fast responses to my emails.