The E-21c is a light, powerful short-length blaster rifle that is very accurate at close and medium ranges, with experimental motion tracking optics and a detachable glowrod. It was designed by Antei Armaments as an improved version of the E-11 and F-11 blaster rifles. It features stun, semi-automatic, 3 bolt burst, and full automatic firing modes. The E-21C also features an increased rate of fire, increased accuracy, and increased power compared to it's predecessors, making it versitle and effective weapon. It has been adopted by the Severian Principate as their main battle rifle.

• 1 slot allowing Upgrades of type Blaster Rifle Weapon Upgrade - I, Blaster Rifle Weapon Upgrade - II, Blaster Rifle Weapon Upgrade - III, Blaster Weapon Upgrade - I, Blaster Weapon Upgrade - II, or Blaster Weapon Upgrade - III
• 1 slot allowing Upgrades of type Blaster Weapon Targeting Enhancement - I, Blaster Weapon Targeting Enhancement - II, or Blaster Weapon Targeting Enhancement - III
• 1 slot allowing Upgrades of type Blaster Weapon Enhancement - I, Blaster Weapon Enhancement - II, or Blaster Weapon Enhancement - III
• 1 slot allowing Aspects of type Ranged Weapon Cosmetic