Sling will go out Priority mail in the AM. Looking at the pic Fosteology posted I'm lot sure it will attach as is normal on the M4 stock but I'm sure you and him can find a way to mount it up. It's a great sling I have 3 on rifles, i just swapped my fourth carbine to a Viking Tactics 2 point.
Need to dig around as I may have a cheapie red dot around too but not sure
