Amazon.com: Nerf N-Strike Modulus ECS-10 Blaster : Toys & Games
Complete enough) Modulus ECS-10 "AR-15" ish clone. <130 fps compliant for LARP, HVZ, and community games. : r/Nerf
Simple Nerf Modulus Mod : 7 Steps - Instructables
THE BEAST ~ A Cosmetically Overkill Modulus ECS-10 With Better-than-average performance ~ LARP Blaster with HVZ Legal FPS ~ Specs In Comments! : r/Nerf