This muzzle brake chamber works in conjunction with Charlie ASR and MAAD Mounts and accepts Charlie front caps.
This is the muzzle brake cage only. Charlie ASR mounts and Charlie front caps are sold separately. You can also remove the Charlie ASR mount and front cap from your Saker ASR or Chimera 300 and use them with this brake. Charlie direct thread mounts are also compatible with this brake.
The first two images show the brake chamber as it ships. The third photo shows the brake with Charlie ASR and Charlie front cap installed. These additional parts are sold separately here: