SilencerCo Charlie 5.56mm/223 Bore Front Cap - SilencerCo replacement sacrificial flat front cap.The 5.56/.223 sized front cap can be purchased for use with the Saker 762, Chimera 300, Omega 36M, or Hybrid 46M suppressor on 5.56/.223 calibers. Doing so will increase the perforrmance when compared to shooting 5.56/.223 through the standard .30 cal sized front cap. Works with 5.56mm and 223 Bore Flat Front Cap Additional and replacement front caps for Omega 36M, Hybrid 46M, Chimera 300, Saker 5.56, and Saker 7.62