Elite 2.0 Volt Mod. Pretty basic-brassed barrel, AR removal, tefloned plunger head, k26 spring, and custom catch spring. Not worth the effort. From my observations Elite 2.0 should be used as cheap
Blaster MOD Kit DIY Parts for Nerf N-strike Elite Stryfe Toy - Etsy
Nerf Elite Removable Stock by Waikikiprod | Download free STL model | Printables.com