Nerf Modulus ECS-10 Replacement Battery Door branded - Etsy Norway
THE BEAST ~ A Cosmetically Overkill Modulus ECS-10 With Better-than-average performance ~ LARP Blaster with HVZ Legal FPS ~ Specs In Comments! : r/Nerf
MOD GUIDE] How to Modify the Nerf Modulus ECS-10 - YouTube