I expect rather soon you'll find out why Aluminum pistol frames are universally anodized, because you will find your frame wearing quite rapidly. FYI Aluminum Oxide has a hardness that is estimated to fall somewhere in the range between 70 and 80 on the Rockwell C Scale. That is HARDER than a premium knife blade. Actually it is harder than fully hardened premium tool steels such as D2. Non anodized aluminum is so soft that you can whittle it with a cheap 2 dollar pocket knife picked up at a gas station.

I would suggest that you find someone who is well qualified to Cerrakote your frame As Soon As Possible and refrane from doing any more shooting. Because if you don't you will destroy that frame quite quickly.