Yes...TriggerShims.com

You can get a pack with 3 each, .002", .003", .004", .005" cylinder shims. These are meant to correct Cylinder Shake. It will not effect cylinder/barrel gap unless you measure C/B gap with the cylinder relaxed rather than pushed to the rear.

Tip...you will need to rig a small magnet to reach down and pull out shims in case you install the wrong size.