Hephaestus Custom Gas Magazine (Extended Type A) for GHK AK Series M120 bipod and upper receiver is

bipod and upper receiver is actually made out of steel and doesn't need any further brushing

It standard comes with 3 stand alone sides rail which allow user to mount the rails on different place of the hand guard

you won't find anything closer than the the one you see here

- CNC Steel Small Parts

4V Li-Poly battery (Mini T-Shape Plug) at your choice  Opening the bolt cover to adjust HOP UP  Utilize 6mm Plastic BB Bullet

Hephaestus Custom Gas Magazine (Extended Type A) for GHK AK Series M120 bipod and upper receiver is[ Limited Production ] Custom made for GHK AK GBB series. Fibre reinforced nylon shell. Equipped with bigger gas tank for more gas storage. Capacity : 60 rounds (6mm BB)