[Mr_Magoo]

Not all. Those that the mag. slides into the grip are "allowed". Only the ones that the mag. mounts in front of the trigger assembly are now banned.

[RedWing9]

Not all. Those that the mag. slides into the grip are "allowed".

I disagree...

a semi-automatic pistol that has an ability to accept a detachable magazine

A glock has a detachable magazine and would therefore be illegal. The use of the word 'and' in the sentence also disallows those with detachable magazines outside of the pistol grip. Nowhere is it stated that pistols that have magazines in the pistol grip are "ok".