Swapping out the mag release is easy to do.
I needed a hooked tool to lift the mag release spring out of it's recess, I just took a Makarov cleaning rod that I have, and bent the tip over 90 degrees. Worked great. Popped the spring up, then needle-nose pliers to pull it out. The rest of the swap was intuitive, and took less than one minute.
Did you see that pic tutorial I posted up when I installed the sheild metal mag release on my 48.
Ran across a vid doing google fu before the install.
Basically pull the cartridge out of a ink pen and use the pen tube to slide over the spring and move it to install the mag release.
Had ta use a dental pick to move the spring at 1st to slide the pen tube body down.
Either way is easy to do.
But people still pay others to do simple task.
Which boogles my mind...
