as i have written in another thread, DDGator's reply above that not all wallet holsters are legal is right, and i thank him for correcting me.
i wrote the following correction on the other thread:
"What I should have said is that this ATF document states that a wallet holster like the pocket shot and shoot thru holster is legal because it "does not conceal the appearance of the pistol." It is has the entire slide of the pistol exposed, and, although there is a hole permitting operation of the trigger, it merely encloses the grip and trigger guard of the pistol and extends in fron of the grip and below the slide. Therefore, it is not subject to the provisions of 18 U.S.C. Chapter 44 or 26 U.S.C. Chapter 53.
it's nice to see, in ATF's own writing, that this type of wallet holster is are legal (i sure hope i'm interpreting this document correctly!).
one less concealed carry item to worry about.