The sight on the Para CCW series is a proprietary sight similar to the Novak design. As you have found out, not all dovetails are the same dimensions, and as you can see the rear of the slide has been machined for this particular sight.
Your best bet for this particular pistol is to reinstall the factory sight. If you no longer have it, one can be ordered directly from Para-Ordnance or from Brownells.
The autonomic nervous system provides for involuntary muscle function - the work of breathing, digestion, and so forth. On some folks, that's a pure waste of ingenuity.