We go back to basics this week with a Polish 74 stamping, a Tantal inparticular. These are quite neat guns, and as you can see by the markings, the fire selector lever is actually on the left side of the receiver with three positions - full, semi, and burst.
With the selector on the left, we retain the normal "selector", which now only functions as a safety. You can see the owner opted to retain the Z and O (safe and fire) markings for this and has two straight notches.
On the bottom, we have a custom serial as well.