Found soldier's name on rifle!
Went to put some more $ on the rifle and I had a second look at it. Found "Sgt Milton G Smith" under some of the grime on the hand guard. Found the same thing on the opposite side also written out in ink.
Googled the name and found a PFC Milton G. Smith KIA. Where and when, I do not know. I suspect that I will have to go to NARA to find out more about SGT Smith who probably left alive rather than PFC Smith. On 25 June 1944, he would have had to be with the 2 Marines or 27th Divison. They were most active during that date in a great battle on the center of the island.