S&W and Remington ILS and S&W mag safeties are easily removed. A small recessed allen screw fills the hole nicely. Remington also sells non-ILS rear firing pin shrouds (to the customer, even!)
the SR9 and the P95 mag disconnects are easily removed without tools....
and as for the LCI, i have an SR9... when you are looking down the sights, you cant even see the LCI... and IMO, the red paint is a good thing, when it isnt bright red, it lets me know its time to clean the gun...
but to each their own... my SR9 is 5 weeks old, ive got over 400rds through it and have yet to see a problem