The Dead Air Mask HD is amazingly compact. Measuring only 5.1", it’s shorter than most suppressors in its class and provides you with optimal sound suppression. The Mask 22 HD eliminates first round pop and is full-auto rated. The Dead Air .22 suppressor accommodates a variety of calibers, including .22LR, 22MAG, 17HMR, and 17WSM, extending up to 5.7×28 rounds. It offers unparalleled flexibility with no barrel restrictions or firing schedule restrictions, making it suitable for use with pistols, rifles, and more. Includes an end cap removal tool for easy maintenance and servicing.