YHM is the leader in affordable, quality sound suppression. Every YHM rimfire suppressor is user serviceable, with the exception of the Wraith model. This means that your suppressor will never "fill up" from firing dirty, unjacketed .22 ammunition. Each suppressor includes a disassembly tool in the price. Every sound suppressor YHM makes is full-auto rated and warranted for life from defects in material and workmanship.