Golly, it is fun guessing the make and model of the rifle from the parts, but it looks like a Savage 110 or a variant.
The answer is simple, though. You have an older rifle and the new parts won't fit. Where did you get the parts and did you provide the supplier with the full model number and serial number? Don't go filing on anything until you contact the parts supplier and get things straightened out. If you alter the parts, they won't take them back.
Jim
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