Phobos armor
To improve the capabilities of Mars Armor.Phobos Armor has been built as half armor.it can only dock with several parts.improve the close combat capabilities

I-Field Glove
The small I-Field shields attached to the shoulder are equipped with deployable blade, allowing an immediate switch from defense to offense.

Scissor Anchor
PhobosMarsfour Gundam is equipped with a pair of scissor anchors stored on the front skirt armor. These anchors are attached to the Gundam by long chains and use scissor claws to grip objects. While these are not offense weapons per-say, they provide several uses in combat. They can be used to grip the limb of an enemy machine to ensnare it, or to reel it closer to the PhobosMarsfour Gundam for melee combat. They can also be used to turn ensnared mobile suits into bludgeoning weapons by pulling on the chain. The scissor anchors can also be used to stabilize the Gundam's footing in case of emergencies, such as when fighting the wind force of an explosion.

Hyper Beam Sabre with Winch
it be used to turn ensnared mobile suits into bludgeoning weapons by pulling on the chain.also it can hold in hands as a normal sabre

Knee hook
With the hook on ankle,They can grip the limb of an enemy machine to ensnare it

Leg Blade
A hidden blade in the leg.

（中国语注意）
火卫一装甲（Phobos Armor）
进一步提升火星4高达近战能力的半装甲。

I立场拳套
肩部的I立场拳套，上面附带电热刀刃，可以作为烙铁也可以作为拳套使用

裙甲爪钩
可以作为抓取敌方MS的辅助武器使用，也可以作为固定机体的辅助设备。

高功率光束剑（配备绞车）
类似锚V2的旋转盾牌，附带固定连接的高功率光束剑，可以通过拉动链条作为甩剑使用，也可以握在手中作为普通光束剑使用。

膝盖爪
可以作为踢击设备，在踢击时抓住敌方MS使其无法活动。提升火卫一火星4高达的近战主动性。

脚跟隐藏电热刀
可以向外转出，在近战时出其不意。