Short story is 1st Gen. 3AT was trouble for a lot of folks. CS was less than helpful over shipping. Lots of haggling & sent it in. When returned it had a KP32 mag in it.
Told me I was wrong. They did not make mistakes like that.
6 witness holes instead of 5 & I did not own a 32 at that time to make the mistake.
I sent it back on my dime & they sent me a 3AT mag upon arrival.
One other reliable member here has his story too.
Seems their CS is either A+ or Bonamma Bad.
I do know the mag release is polimer & will wear out.
Hope yall have better dealing than I did.