I only have two stamped sheet metal stripper clips for my 98k and I wanted a few more (without breaking the bank), so I did some tests… this is the 8th iteration so far and it works reasonably well.
I closed off one end to stop the rounds from falling out and added two stubby wings as a fulcrum so that the whole clip doesn't get pushed into the magazine.
Just printed it today, so no idea how durable they are - might post overhauled versions in the future.
Print settings are fairly arbitrary as you'll be only printing walls anyway. No supports.
The author hasn't provided the model origin yet.