Amazon.com: Nerf Modulus Mediator Blaster - Fires 6 Darts in a Row, Pump Action, Slam Fire, Includes 6-Dart Clip and 6 Official Nerf Elite Darts (Amazon Exclusive) : Everything Else
Nerf News: Update on Modulus Mediator XL Attachments
janky' mediator cardboard attachments : r/Nerf
Nerf News: 2018 Spring Blasters – Official Product Details
Amazon.com: Nerf Modulus Mediator Blaster - Fires 6 Darts in a Row, Pump Action, Slam Fire, Includes 6-Dart Clip and 6 Official Nerf Elite Darts (Amazon Exclusive) : Everything Else
Mediator barrel attachment found in sg toyrus as well : r/Nerf