SSWI Custom Tactical HALO Barrel Easy Mod For HammerShot - Hammer Shot | eBay
WORKER NO.217 B Type Mod Kit Set for Nerf Hammershot attachments – JGCWorker
Break-Action Nerf Hammershot | NerfGunAttachments | The Nerfer's eMall
Amazon.com: WORKER NO.217 Mod Kit Set for Nerf HammerShot Modify Toy : Toys & Games
AK Blaster MOD Barrel Tactical Rail Kit for Nerf Micro Hammershot Modify Toy | eBay
Worker Mod Blade Style Decoration kits for HammerShot Modify Toy-Orange | Worker Nerf Mods - Workermod.com
Rival Hammershotty - a 15round Hammershot Mod. If there is enough interest, I may put this mod kit up on Etsy. Let me know if you would pay $20 or so for
Honest Review: The Viper Kit For The Nerf Hammershot - YouTube
Hammershot with a 32 dart inline magazine : r/Nerf