Nerf Regulator Modulus Sci-fi Steampunk Dark Copper Brass - Etsy
Worker Super-e Parts Set For Nerf Hyperfire/for Nerf Modulus Regulator Modification And Replacement(diamond Pattern) - Pink+blue - Toy Guns - AliExpress
Regulator Mod Guide - YouTube
JGCWorker Folding Shoulder Stock Core Parts for Nerf N-Strike