Mod Works: Nerf N-Strike Jolt (Blue Version) - Internals Guide!
How to Mod a Nerf Jolt: A Quick Easy Tutorial Guide for the Superjolt! - YouTube
TUTORIAL] Nerf N-Strike Elite Jolt Mod Guide - YouTube
Nerf Mod] Tactical Nerf Jolt Mod Guide (The Ultimate Nerf Jolt Reskin!) - YouTube
4.5KG Upgrade Spring for Nerf N-Strike Reflex IX-1 Toy | Worker Nerf Mods - Workermod.com
Hasbro updated their stinger from having a traditional jolt air-restrictor spring to a plastic air-restrictor spring. (More of the changes/updates to the stinger are in the comments) : r/Nerf