- 60mm Vulcan Gun
The Vulcan guns were 60mm Gatling Guns stored on the sides of the GM's head. Having the greatest rate of fire of all the GM's weapons these are primarily used to ward off advancing enemies, shoot down missiles, or hit other fast moving targets. They also made good use as an anti-aircraft and anti-personnel weapons. The Vulcan guns however had a hard time piercing heavy armor (Though they had shown the ability to do severe damage to Mobile Suit's if fired at point-blank range)and thus were not often used against larger, more heavily armored foes. Still the Vulcans were useful in preserving ammunition for the GM's more powerful weapons such as the Beam Spray Gun.
- BR-M-79C-1 Beam Spray Gun
The Beam Spray Gun was essentially the Gundam's beam rifle in a smaller weaker form. The beam spray gun has a smaller focusing coil which results in a less powerful, and a more scattered shot. As a result of this the beam spray gun is less effective at long range, but is better at close range due to a more spread out shot, similar to a shotgun effect. While the beam spray gun is less powerful than the beam rifle, it has been shown to be able to penetrate the armor of a Rick Dom - one of the most heavily armored mobile suits of the One Year War.
- NF GMG-Type.37/100mm Machine Gun
The standard armament for Federation mobile suit ground forces, the Type 37 is an open-bolt, gas-operated, magazine-fed, mobile suit handheld machine gun. It fires a 100x450 millimeter round at a rate of 500 rounds per minute and is loaded with a 20-round box magazine. Features include a folding stock and swivel forward hand grip. Accuracy is limited due to the aiming from regular iron sights and not a targeting sensor. Maximum effective range of 1.5 kilometers.
- BLASH HB-L-03/N-STD Hyper Bazooka
Similar to the Zaku's Bazooka, the Hyper Bazooka was a heavy weapon used by the GM. Technically a large rocket launcher it could fire several 380mm rockets to attack targets at long range. While very powerful the Hyper Bazooka had a slow rate of fire and fairly little of ammunition. Most oftenly used to take out slow, heavily armored targets.
- YHI 6ML-79MM 6-Tube Missile Launcher
The missile launcher consists of the base receiver that has all the targeting equipment and the trigger group. Up to three two-tube missile packs may be loaded onto the receiver. Each tube contains one missile, which after being fired, is wire-guided to the target. The missile packs may be swapped out in the field. Most oftenly used to take out slow, heavily armored targets.
- HWF GMG·MG79-90mm Bullpup Machine Gun
Because of the expense and difficulty of producing beam rifles, or even beam spray guns, the Earth Federation also produced mobile suit sized machine guns and bazookas, similar to what Zeon's Zaku mobile suits used, because they are cheaper and easier to produce, requires less energy, and is overall easier to maintain because it relies on older, less complex, well known technology. In addition machine guns had the advantage of holding considerably vastly greater amounts of ammunition, and mobile suits could carry fresh clips around to reload their weapons should the current clip run out. This allows a mobile suit to operate with greater independence as during the One Year War the only known way to rearm a spent beam rifle was to return to a base with the proper recharging equipment. The trade off is that machine guns are less effective. If a beam rifle or beam spray gun should so much as glance off of an arm or a leg, that limb will be rendered useless if it is not outright destroyed, and a hit to the torso is almost always fatal. Machine guns have greater difficulty penetrating the armor of a mobile suit, and must typically be fired from at least mid-range with multiple shots hitting the target before it can take down the target. And even then it is not always a sure thing. A high-powered beam weapon that can be seemingly generated from anywhere on its body. The original show depicts them as massive clawed hands sprouting from its shoulders that fire beam barrages from its fingertips but other games show beams being fired from the protrusions on the shoulders, its chest or its head base.
- BLASH XBR-M-79E Beam Rifle
- FADEGEL RGM-M-Sh-003 Shield
- RGM*S-Sh-WF/S-00109 Shield
- Self Regeneration
Allows the GM to instantly repair any damage, no matter how severe.