PPSh-41: Magazine Latch
The magazine latch (the part that keeps the magazine seated in position to feed bullets) was tricky to figure out but was in fact brilliantly simple in design. My biggest problem (as in the rest of this project) was getting the individual parts to work together and then fit and work with the lower receiver. You can see a mis-drilled hole when I was trying to figure out the correct position.
The latch in position shows how the latch rotates its the axle and, with pressure from a hidden spring, locks the magazine in place. The folding handle flips down and then moves the latch away from the magazine, allowing it to be removed.
Here are all the parts I have completed in relative position to each other. I'm getting close...