That's my blue label Glock 17
That's my personal carry Glock 19 4th gen.
Its an even spreading rectangle that gets pressure to engage the mag release on the gen 4 then gen 3 is like a button. I'm sure they changed it for a reason.
That said though, honestly. One isn't necessarily better than the other for most people.
But one definitely is not better than the other in terms of being easier to press.
I've maybe done it once on my Glock 21 at 4:00 IWB or with my old Glock 27 that I had.
Never happened to me with the G19
SIG Sauer 1911 XO - Custom Springfield MilSpec 1911 - Colt Gold Cup Trophy Model 1911 - Colt 70 Series 1911 - SIG Sauer P220 - SIG Sauer P226 E2 - Browning High-Power blue & stainless - Glock 17 - Glock 19 - Glock 21SF - Glock 22 - S&W Model 19 - H&k USP 40 - Remington Magnum 870 - Rock River AR-15 “Americans can no longer depend upon legislation to defend them from all who intend to do them harm.”