Amazon.com: TASKQWIK Toy Gun Attachments for Nerf Guns, DIY Nerf Blaster Upgrade Accessories Compatible with Nerf Modify N-Strike Elite and Modulus Series Toy Gifts for Nerf Fans (AK Set) : Toys &
Nerf's Modulus BarrelStrike can be used as a blaster or attachment: $9 (35% off)
2 Pack Nerf Compatible Tactical Rail Connector Joiner, Connect Two Guns Together - Etsy
Murder Hole Attachment for Nerf® Nemesis – 3D Printed Solid
Amazon.com: NERF Elite 2.0 Turbine CS-18 Motorised Blaster, 36 Official Darts, 18-Dart Clip, Tactical Rails, Barrel Attachment Point : Toys & Games
Amazon.com: NERF Elite 2.0 Phoenix CS-6 Motorized Blaster, 12 Official Darts, 6-Dart Clip, Scope, Tactical Rails, Barrel and Stock Attachment Points : Toys & Games
Nerf Barrel Attachment With Under-mounted Mega Blaster : 7 Steps - Instructables
Nerf Compatible 6 Shell MOD Attachment for Zombie Strike Sledge Fire Sledgefire - Etsy