A basic weapon mounted in the forehead. They can shoot beams at a rapid rate.
G-Self has a pair of beam sabers stored near its shoulders. It can spin them fast for defensive purposes.
G-Self actually uses two models of beam rifle in the story. The original one made by Towasanga and new one made by Amerian Army. The Towasanga's model is more powerful, but the Amerian model is easier to maintain.
G-Self uses three models of shield in the story. The original one made by Towasanga, another one made by Amerian Army, and the third made by Venus Globe along with the Perfect Pack. Although Amerian model is cheaper, Towasangan model has built-in vulcan guns, sliding beam absorbing reflectors, and is capable of generating a photon shield to protect allies.