The anchor retaining rings (P/N ARO 38FCRRA) for the 38mm reload adapter system. This is an accessory to the 4-piece 38mm reload adapter system. The anchor retaining ring has a 5/16-18 thread for a forged eyebolt or similar recovery attachment and is vented to allow passage of ejection charge gases. The anchor retaining ring can only be used when one or more case spacers are present in the motor assembly.