I have been looking for a way to mount a light to a Mk1 hand guard without using a 1913 rail section and an additional mount on that. Geissele used to make a kit, but it is no longer in production. I found that an Arisaka in-line scout mount for Troy/VTAC Alpha (with Alpha slots) works without modification. It uses a back plate, which makes it a bit more difficult to install than m-lock or keymod because it requires access to the back of the hand guard. However, I was able to install the mount at the front without removing the hand guard. This mount works with Surefire Scout, Streamlight protac rail, and Arisaka 300/600 lights.
This mount allows running an M4SDII and looks to have plenty of room for different type suppressors.
http://i151.photobucket.com/albums/s...0mount%203.jpg
http://i151.photobucket.com/albums/s...0mount%202.jpg
http://i151.photobucket.com/albums/s...0mount%204.jpg
http://i151.photobucket.com/albums/s...0mount%201.jpg
http://i151.photobucket.com/albums/s...0mount%205.jpg
http://i151.photobucket.com/albums/s...0mount%206.jpg

