Gunner Airsoft put together a custom made AK-105 gas blowback rifle which is the only one made by the company. This is based on the Star Rainbow Company (SRC) AKS-74U gas blowback, this is fitted with an AK-105 inner barrel, gas block, flash hider, rear sight block, and gas tube which are made of steel. This is an experiment, and it is not specified how it will perform. But if you want to go for it, it's available for you US$430.00.