Nerf N-Strike Modulus Distance Scope Attachment 9" Long Range Upgrade Orange | eBay
Plastic Scope Sight for Toy - Black Plastic Tactical Scope Sight Attachment with Reticle Targeting Accessory for Modify Toy Kids Gift : Amazon.ca: Toys & Games
3D Printable Nerf gun Scope Attachment by Michael Schneider
Plastic Scope Sight Attachment with Reticle Accessory for NERF Modify Toys Optical Scope Hunting Optic Sight Targeting Accessory - AliExpress
How to Make a Homemade Nerf Sniper Scope: 5 Steps (with Pictures)
NERF N-strike Elite Modulus Extension LONG RANGE SCOPE Attachment | eBay
Mounting a Scope on a Nerf Strongarm : 7 Steps - Instructables
AngelReally Scope Sight for N f Gun,Plastic Detachable Tactical Scope Sight Attachment for Modify Toy Kids Gift (Orange Scope Sight) : Amazon.com.au: Toys & Games
2pcs Black Scope Sight For Nerf Toy Guns Attachment With Reticle Targeting Accessory For Modify Toy Kids Boys And Girls Gift - AliExpress
Protip: If you can't afford attachments, Nerf attachments will do just fine :) : r/airsoft