-No broken part in the bullet lock - Mepain
-Better pin guide - Kinetic (This is probably the best and most helpful, because I don't know about you guys, but I had lots of trouble with zak's, his was just terrible. You had to tape it, the pin guide had to be a grey rod so it could bend, and it never attached right. For a while I just took it off, until I saw Kinetics on his vice ckg)
-New trigger that blocks farther back and does not bend or need tape - Me
-Top loading mag with a lock-down pusher to make loading easier - BakenBitz (GrandeSwag)
I got lazy on the stock, so what.
Oh and credit to zak (knarez) for the original design.
Sorry the image notes suck, I can click and make one, but they are all the same square shape, so sorry if I don't seem to point out something well with a box.