New motor forward closures were released that adapt the EFC-1 to the various size high-power RMS motor casings, including an extended version for the long-burn 54mm reloads. Part no. EFC29-1 is the 29mm closure ($24.95), EFC38-1 is the 38mm Closure ($39.95), EFC54-1 is the standard length 54mm closure ($53.95) and EFC54-2 is the extended length 54mm closure ($69.95). An avionics combo pack (part no. EFC-CP) is also being offered that includes the EFC-1 and one each of all the motor closures for $339.95 suggested retail, a nearly $20 savings. As a bonus feature, all of the EFC motor closures were designed to eliminate the need for the delay o-ring and forward delay spacer, simplifying motor assembly.