Unfortunately he passed way too young in 1985, he was in the 101st airborne F company327th Glider infantry regiment, 2 purple hearts and the bronze star for service from June 6 1944 to May 8 1946, for courage in the Normandy campaign, The airborne assault on Holland in Sept of 1944, and the defense of the key city of Bastogne Belgium from the 19th of Dec till the 27th of Dec. he spent almost a year in England prepping for D-day.It's a military Mauser that was sporterized (turned into a hunting rifle) This was done a lot after the war.
That crack in the stock above the pistol grip needs to be addressed as it will get worse from recoil. Thank your father for his service.
Those pictures of your father are awesome! I would repair the stock and keep the rifle like it is. Seems he earned the right to modify the rifle any damn way he wanted to!!! Excellent post.. Any more photos of his time in the military??