Not accurate description!!! - Strike Industries Canik TP9 w/ 9mm 5 Round Extended Magazine Plate

Bought 2 of these for my TP9DA w/ standard 18 round magazines. Got one installed and quickly realized it didn't add 5 to my round count, only 3. But that ultimately made the gun unsafe to operate due to the fact that I had to literally force the magazine into the gun. So I took a round out and the fit was snug but acceptable and safe. But then I realized if I wanted to go back to the original I couldn't because there's no way to take the magazine back apart without fighting or ultimately cutting the new spring. So instead of installing the second unit I bought, I'm going to run the one mag I've got that now holds 20 instead of 18 and see how it does. If it operates without failures, I'll probably install it. But if it fails, I'll be sending the unused one back and requesting a refund.