Complete motor hardware for Experimental use only.
This hardware comes with a plugged/smoke style bulkhead with 1/4-20 tapped hole, your choice of a #25 or #28 throat nozzle, nozzle washer and two snap rings. Other "EX" size nozzles are available for a $4 up-charge. A "Smoke Delay/Ejection" style bulkhead may be substituted with a $4 discount. Maximum propellant length is 18.1".