I picked up a Garand stock at a yard sale and the lady couldn't tell me anything about it other than it belonged to her x. I need help identifying it. I don't know if it's GI or after market. The unique thing about it is that it has several factory routed places that might be points of contact for the action. No glass has been put in them. and no serial#. There are two at the rear of the trigger group about 5/8" long,two at the bottom of the mag well about 3"s long,a u shaped one at the rear of the action about 1"x 1"x 1",and finally two at the front of the action. The right side operating rod side is about 4" long and the left side is about 2 1/2". All these are about 1/8 to 3/16" wide and deep. The stock has never been finished and has no markings on it. No cracks as a second would have. Any info would be appreciated.