Aikido calls this lock "nikkyo", and we in hapkido of course use it as well. In Kuk Sool it is first introduced in our Ahn Sohn Mohk Soo set, so what you are seeing is 6th out of those 10. Follow for more regularly posted techniques and training methods! My art is a combination of aiki, kung-fu, jujutsu, and Korean kicking. #hapkido #aikido #aikijujutsu #aiki #kuksool #kuksoolkwan #jujutsu #jiujitsu #judo #kungfu #taiji #taichi #selfdefense #martialarts #artesmarciales #fitnessmotivation #fitnes