There are thousands of different parts to use to build your M.A.V. You will acquire new parts in many different ways, whether it is from completing story missions, gaining rank by earning experience, or having your faction research the part in Campaign mode.
Because there are so many different parts, I can't even begin to name them here. What I can do is give you an idea of what is planned. You can also see a detailed list of parts on the games website.
Weapons
Machine Guns : Gatling Guns : Shotguns : Assault Rifles : Battle Rifles : Sniper Rifles : Sniper Cannons : Rail Guns : Grenade Launchers : Mortars : Bombs : Mines : Rocket Packs : Rockets : Bazookas : Howitzers : Cannons : Auto Cannons : Flame Throwers : Pneumatic Spikes : Heavy Weapons
Mobility Base
Bipeds : Treads : Reverse Biped : Digitigrade : Wheels : Quadruped : Hexapod : Hover
Deployment Systems
Deployment systems allow you to bring additional utility items on to the battlefield and deploy them to your advantage. They include:
Turrets : Defensive Barriers : Repair Stations : Communication Uplinks : Beacons : Communication Jammers : Mobility Reducing Barriers
Spacers
Spacers are armored connection joints. They allow you to position parts in many different ways.
Auxiliary Parts
Auxiliary Parts include a handful of situation specific parts. They include:
Vision Modes (Thermal, Night Vision) : Radiators : Extended Ammo Holders : Fire Suppression Systems : Commander Uplinks