Hyperdouraku was able to get his hands on the Tanaka-Sanken Colt SAA Birdhead Grip Series. Expected to be released by Mid-April 2014, this is a collaboration between Tanaka Works and Sanken. Two versions will be released --- the 3inch and 4 3/4 in Silver Plated and Black colours. For revolver collectors, this will cost JPY26,800 tax included.
Read the full review at Hyperdouraku. (In Japanese)