How to build a Beretta A400
This comprehensive guide details the manufacturing and assembly process of the Beretta A400 semi-automatic shotgun, as presented by Pietro from Beretta. It covers everything from parts sourcing and quality control to the intricate steps of receiver assembly, gas system integration, and rigorous testing at the Italian National Proof House. The process highlights Beretta's engineering expertise in creating a reliable and versatile shotgun capable of cycling a wide range of ammunition.











