This precision trigger switch has an actuating force of 2.25 lbs. to make the first pole; 6.5 lbs. is required to pass through the detent, and 6.0 lbs. to continue travel after the detent. Housing is black thermoplastic, trigger button is red thermoplastic, and the side covers are black anodized aluminum. With a width of .641", the U2-016 is military qualified to M8805/111-01.