Click Here for Fitment GuideThe Mask HD Suppressor by Dead Air Silencers offers a level of sound reduction that’s only matched by its level of user-serviceability. This direct-thread suppressor features a special baffle configuration eliminates the "first-round-pop" that plagues suppressors of a lesser quality, with subsequent shots being equally as quiet. The Mask's design also allows it to be easily disassembled for cleaning and periodic maintenance. In addition, the Mask features construction that consists of a high strength titanium tube with stainless steel baffles and end cap – a combination that allows it to stand up to the elements and the rigors of long term use in the field. Features of the Mask HD Suppressor: Compatible with .22lr up to 5.7x28mm cartridgesEasy disassembly Rugged construction No "first-round-pop" Dead Air Silencers Dead Air Mask .22 LR 5.1" FDE Silencer (NFA) MASK22FDE