S&W M&P 2.0 Thumb Rest Takedown Lever - Align TacticalSecure Design The thumb rest ledge extends 30 degrees forward of the center of rotation, directing applied pressure (counter clockwise) towards an included over travel stop to rigidly remain locked in place. When used in the opposite direction (clockwise) for disassembly, rotation is easy with a simple pinch and turn of the ledge. Ergonomics Establishing a two handed grip creates a naturally angled cant of ones support hand thumb. Incorporating a