Amazon.com: TASKQWIK Toy Gun Attachments for Nerf Guns, DIY Nerf Blaster Upgrade Accessories Kits Compatible with Nerf Modify N-Strike Elite and Modulus and More, Toy Gifts for Nerf Fans (Stealth Set) :
Nerf Modulus Long Range Upgrade Kit - Walmart.com
NERF Modulus Combo Pack - Walmart.com
2 New Modulus Attachments! : r/Nerf
NERF Modulus Combo Pack - Walmart.com
Amazon.com: Ner Modulus Round Counter Kit : Toys & Games