AK47 Bolt & Bolt Carrier

AK47 Barrel with nothing installed

What you’ll typically buy as an AK47 barrel

AK47 Barrel

One of the parts on the 922(r) Compliant US parts count list

AK47 Gas Block

This part brings gas pressure up from the barrel into the gas tube, to push the gas piston to cycle the action. There are many types and designs of this part depending on the year, country and type of AK47

Barrel Bushing Lock

Gas Block Retaining Pin

This pin can also be used on the front sight post