Been seeing some Mediator posts recently, it's my favorite elite springer too! Here are a few of my favorite setups for it (mod list in comments) : r/ Nerf
Nerf N-Strike Modulus Mediator Pump-Action Blaster, Ages 8 and up - Walmart.com
Naptown Nerf - My Mod Guide for the Nerf Modulus Mediator is up. This was a mush simpler mod than I expected. A great option for people new to modding, and it's
Nerf Mediator + Rocket Launcher and Drum! for Sale in Tacoma, WA - OfferUp
Nerf Modulus Blaster Stock Upgrade for Sale in Ontario, CA - OfferUp