NERF N Strike Guns Rifle Shoulder Stock Extension | eBay
Amazon.com: NERF Modulus Recon MKIII Blaster, Removable Stock and Barrel Extension, Dart Shield, 12-Dart Clip, 12 Elite Darts, Outdoor Games and Toys for Boys and Girls (Amazon Exclusive) : Toys & Games
Worker Nerf Simple Extension Stock (multiple colors) – Out of Darts
Amazon.com: NERF Elite 2.0 Echo CS-10 Blaster - 24 Official Darts, 10-Dart Clip, Removable Stock and Barrel Extension, 5 Tactical Rails : Toys & Games
Outback Nerf: Quick Mod: Extended Crossbolt Stock
Blastermod StockShot Extension Butt Stock Dart Blaster for Nerf Modify toy
Saturn Stock Extension with Cheek Rest in the Works : r/Nerf