The D-Boy RK-03 externals include a full metal receiver and barrel assembly. And, the handguard s are not simply replica wood like many AKs on the market; it is authentic wood. The receiver has a scope/equipment rail that can mount AK specific equipment and scopes. The stock is folding and locks in place on the left side of the receiver when in the closed position. The RK-03 even breaks down like the real deal. For half the price of a Tokyo Marui you get more than twice the gun. The package includes a high capacity magazine, battery, charger, and many of the same features as higher end guns like VFC.