RC rocket missile with drop mechanism

This is a RC Rocket with Helicopter recovery system (no parachute needed) and drop mechanism that can be attached to any drone or airplane. I did it a little bit shorter than the original version , this way can fit on my "Skywalker" 1900. I used small 4.5gr. servo HD-1440A and 2 steel bars ф1.5мм diameter and 35mm and 29mm long with soldered nut and bolt to each. Make small circle on the 35mm bar with the same diameter as "stopper parts and attach it to the servo" solder a m3 bolt to the other