Available last 12th of December 2014, are the Laylax Fluted Outer Barrels for the M9A1 Gas Blowback Pistol. These are made of gun-metal texture alumunium allow which the flutes were done by high precision multi-axis machines. You can choose between two versions: straing and twisted. As for the introductory price it is at JPY7,800 or around US$64.20.