I pretty much concur with most of the above. Ext. slide release and lock, but while ext. mag releases might be "nice", I've had and heard too many stories of inadvertent mag releases from them. Like a tight holster or bit of belt or clothing accidentally engaging the release.
I "do" like me a custom rear plate. Rockyourglock allows you to upload your own graphic/text file on a custom plate that's pretty cool.
I would go along with a suppressor (OEM threaded). I'm one too that discourages going with those third-party... so called "performance barrels".
Other than sights and externals... I would leave it alone. I agree with @solv3nt. There isn't much point to spending bucks to upgrade a cheap gun... and even less a point as you're just as likely to mess up the function and reliability aspects . Especially on your "go to" SD firearm.... it begs the questions, "why!?"
I "do" like me a custom rear plate. Rockyourglock allows you to upload your own graphic/text file on a custom plate that's pretty cool.
I would go along with a suppressor (OEM threaded). I'm one too that discourages going with those third-party... so called "performance barrels".
Other than sights and externals... I would leave it alone. I agree with @solv3nt. There isn't much point to spending bucks to upgrade a cheap gun... and even less a point as you're just as likely to mess up the function and reliability aspects . Especially on your "go to" SD firearm.... it begs the questions, "why!?"