Skip to content

Mega KO – Nerf Rival Knockout Mega dart mod by Ehdrien


Talking about a stylish Mega dart shield buster or brilliant HvZ secondary, the Mega KO by Ehdrien is your reliable choice!

Blaster not included!

Please choose colours and optional parts below.

Main Blaster Colour Selection

Optional Parts

The Mega KO Knockout kit by Ehdrien

The Mega KO kit by Ehdrien transforms your Rival Knockout into a single shot Mega dart blaster.
Ideal as a secondary for shields or HvZs or whenever you want to surprise someone with a long range Mega dart tag!

The Mega KO is part of the Ehdriens Knockout Trilogy, so if you want more Knockout mods, check out the MayDay mk1 and the Pepperbox!

The smooth trigger and the T-Pull are optional and can also be purchased separately.


– this kit will come with the additional hardware needed for installation

Tools required:
– Philips screwdriver
– Set of Allen keys
– Plyers & hobby knife to remove the Rival-AR-thingy


This kit requires no external shell cutting to install however you will need to remove the Rival-AR-thingy.
Everything else is pretty straight forward.
I build the entire trilogy in a live stream so check it for some installation help.


General Information:

– This part/kit is designed by Ehdrien and is fully licensed to sell in my shops.

– Blaster not included (unless stated otherwise)

– 3d printed parts will be made to order so allow 2-3 weeks production time

– Modify blasters at your own risk. All modifications done using blasters, parts and products should be done by an adult or with adult supervision.

– Rainbow Mods & Props is not responsible for any damage done to your blaster or yourself in the process of modification.

WARNING: Installing mods might change the look of your blaster and although this does not necessarily look like a real firearm, it could be mistaken for one. As such it is completely the responsibility of the buyer in how it is handled. When installing mod kits make sure to add necessary precaution (orange tip, etc.) according to your local law and use responsibly.

Rainbow Mods & Props cannot be held responsible if anything occurs as a result of this being handled like a real gun.

– Rainbow Mods & Props has no affiliation with Hasbro, Nerf or any of their respective affiliates.

Weight 0,3 kg
Dimensions 23 × 15 × 9 cm

You may also like…

Start chat now!
Can I help you?
Rainbow Mods & Props chat
Thanks for checking out my shop!
Feel free to contact me via WhatsApp if you need any help or have any questions regarding the products.