I lowered the infill since I do not needed it that strong.

I print it with no infill. It came out looking amazing. The only problem is that I didn't use support for the outside and the long "bridges" failed, but they didn't break the overall look. Make sure to use supports.

It looks awesome, just ready to be painted. Only mention is to not print the plastic spring, it gets weak the next day if the magazine is loaded. Try replace with metal one from the start.