Try this one: http://www.511tactical.com/All-Produ...tol-Pouch.html
There is a small zipped pocket that allows to hide the lock so your ULCC does not draw any attention.
It is relatively easy to draw from.
And if you see that something serious is about to start you can always decide reduce your drawing time by discretely removing the lock or even loading the gun. It all depends on the situation.