https://www.cainarms.com/base-pads/
I found these. They claim to add 4rds and are of polymer construction. You can also choose different colors.
I would be very interested in anyone's feedback on first-hand experience with these... ;-)
They look to be 3D printed. Curious to see how well they hold up over repeated mag drops on concrete.
That is exactly why I?m curious :-D
You should be the test dummy
I'm a little surprised they call for standard strength springs.