Disclaimer is I am definitely no fan of Glock... For no particular reason.
If anything, Glock is late to the party as usual, there is a huge aftermarket already supplying that. One of the number one reason people like Glock is because huge aftermarket. I didn't see the announcement, and again no fan so haven't done stuff, but I'm not sure what Glock is providing that doesn't already exist. Not to mention that typically with manufacturer vs aftermarket... With most all make... The aftermarket does it better than OEM.
If anything, Glock is late to the party as usual, there is a huge aftermarket already supplying that. One of the number one reason people like Glock is because huge aftermarket. I didn't see the announcement, and again no fan so haven't done stuff, but I'm not sure what Glock is providing that doesn't already exist. Not to mention that typically with manufacturer vs aftermarket... With most all make... The aftermarket does it better than OEM.