Metal Release: Incredible Missile Fist

After the body modification done though metal release, this technique launches a part of an arm created by metal, using it as a projectile weapon. With a small-scale explosion, caused by chakra collected in a huge metal pocket which grows on the user's shoulders, the hand portion gains propulsive power and flies off in a straight line with tremendous force. Its destructive power is great enough to easily break through even thick bedrock. The hand portion is protected with chakra, which allows it to remain unscathed. The chakra in the metal pocket draws the hand back like a magnet, reattaching it again.