Custom AK gas blowback by RA Tech which is available for US$560 at eHobby Asia... "Grab it with your hands and you will feel the solid steel construction with real wood furniture just like holding a real AK. It has realistic AK simulated surface finishing. Unlike the Inokatsu's/LCT's AEG, GHK redesigned the internals & reproduce the mold. It comes with a full steel gas magazine. 'Robust & Rigid' are the only words we can find to describe its quality

RA-Tech Custom Works:

• Full Metal Hammer (Increase the valve trigger angle)
• Safety Sear (New safety sear will not interfere the trigger set)
• Steel Made Realistic Bolt Carrier (Screw fixed on the side reduce head damage)
• Triger Safety Selector Lever (New version is more accurate)
• Hop Up (New version for long barrel is enhanced, and add new design to prevent BB fall out)

GHK Features:

• Laminated Wood made Handguard & Stock
• Realistic black-anodize steel magazine shell
• Fully / Semi-Auto Shooting
• Functional Bolt Safety System - Bolt hold & trigger turn to safety when magazine is empty
• Realistic Operating Rod and Military Fire Selector Switch
• Military Type Front Sight and Flash Hider
• Empty Magazine Firing Mode can be turn On/Off by lever located on the magazine
• Realistic Metal Magazine can hold 40 rounds BB loading capacity
• 14mm Counter-Clockwise Slant Type AKM Flash Hider"