This SilencerCo Charlie Front Cap is a replacement or addition for the front cap that ships standard with Chimera 300 and Saker ASR suppressors. Using the correct diameter front cap can result in additional sound reduction of 2-3 dBs. Charlie accessories are compatible with Chimera 300 and Saker series (all models). Replacement sacrificial front cap for the Saker or Chimera suppressor in the unlikely event of an end-cap strike.