Nerf Rival Knockout Hairpin Trigger Toy - Etsy Hong Kong
Honest Review: Nerf Rival Knockout - YouTube
3D Printable Rival Knockout Barrel/Muzzle by Kenneth Buckingham
AK MOD Print Handle Guard Grip Rival Ball Holder for Nerf Knockout Modify Toy
Nerf Rival Knockout with brass conversion. My first mod ever, and paint job. It's a bit sloppy but I think it turned out pretty good. 130-150 FPS : r/Nerf
Amazon.com: NERF Rival Knockout XX-100 Blaster -- Round Storage, 90 FPS Velocity, Breech Load -- Includes 2 Official Rival Rounds -- Team Blue : Everything Else
Amazon.com: NERF Rival Knockout XX-100 Blaster -- Round Storage, 90 FPS Velocity, Breech Load -- Includes 2 Official Rival Rounds -- Team Red : Everything Else
SSWI for Nerf Rival Knockout to Mega Dart Removable Barrel - Etsy