Non functional replica

Hey guys, I love this subreddit, even though all of you are Feds. I'd like to print some realistic firearms replicas in pastel colours, not chasing actual firearms as such, happy to buy springs and screws and stuff to assemble them. Can any of you glowies give me some keywords or tags to search or otherwise point me in the right direction? I'm not keen on paying $30 a file on those 3d printing pages, hoping to find the files for free