The original design of the sg22 works and all, but what I've done is change the hole that the trigger sits into, to be way closer to the right size so that the spring doesn't slip out of place. I also removed the buffer threads (that are pointless because it's buffer less) that would be hidden behind the upper once assembled. some of the holes were a little low poly for me, so I also fixed that and made the grip screw-hole 5mm so that they're easier and cheaper to get. Also made it slant forward slightly at the bottom of the rear of the mag hole to hold the mag in position correctly. Added some nice, well fitted uppers and all the other/original parts into the file except for the obviously un-printable ones...
HAPPY PRINTING!
LBRY Tags: 2a; sg22; sgremix