Gyrosoft

We calculate this number using a recency-weighted average of all ratings, with a rating's value decreasing by half each year to best reflect the current experience.

William on 25 Apr, 2026

5 out of 5 stars

Very fun, glad we got this.

B-GRADE 400-Round Nerf Nemesis Upgraded Hopper | High-Capacity Rival Ball Blaster Upgrade

B-GRADE 400-Round Nerf Nemesis Upgraded Hopper | High-Capacity Rival Ball Blaster Upgrade
William on 25 Apr, 2026

5 out of 5 stars

Exactly as advertised and more.

B-GRADE 400-Round Nerf Nemesis Upgraded Hopper | High-Capacity Rival Ball Blaster Upgrade

B-GRADE 400-Round Nerf Nemesis Upgraded Hopper | High-Capacity Rival Ball Blaster Upgrade
Bryan on 20 Oct, 2025

5 out of 5 stars

I never run out of ammo in a fight lol. Definately worth it!

B-GRADE - Upgraded Hopper for Nerf Nemesis | 400-Rounds Capacity Ball Blaster | Nerf Rival Upgrade | Indoor and Outdoor Nerf Wars | HvZ

B-GRADE - Upgraded Hopper for Nerf Nemesis | 400-Rounds Capacity Ball Blaster | Nerf Rival Upgrade | Indoor and Outdoor Nerf Wars | HvZ
Andrew on 28 Aug, 2025

5 out of 5 stars

It's such a cool upgrade. A must buy for anyone who owns a nemesis.

Chain SAW Front Handle for Nerf Nemesis | Unique Ergonomic Change for Nemesis Hopper | Buzz Saw Blaster | Indoor & Outdoor Nerf Wars | HvZ

Chain SAW Front Handle for Nerf Nemesis | Unique Ergonomic Change for Nemesis Hopper | Buzz Saw Blaster | Indoor & Outdoor Nerf Wars | HvZ
Andrew on 28 Aug, 2025

5 out of 5 stars

It's such a cool upgrade. A must buy for anyone who owns a nemesis.

400-Round Upgraded Hopper for Nerf Nemesis | Nerf Rival Upgrade | High Capacity Ball Blaster | Indoor and Outdoor Nerf Wars | HvZ | Play

400-Round Upgraded Hopper for Nerf Nemesis | Nerf Rival Upgrade | High Capacity Ball Blaster | Indoor and Outdoor Nerf Wars | HvZ | Play
Randall on 14 Jul, 2025

5 out of 5 stars

Gyrosoft worked with me to print his Perses cage in PETG, which I could not obtain anywhere else. Great communication - he's easy to deal with and takes care of you.

Perses Flywheel Cage (Photon-Compatible) - PETG

Perses Flywheel Cage (Photon-Compatible) - PETG
Trae on 10 Apr, 2025

5 out of 5 stars

Seller is outstanding. This is the second purchase from Gyrosoft and again another “Knock Out” product. Printed the hopper in colors that will go with my current scheme was great! “Need more Ammo”! Now I got it from Gyrosoft!!!

400-Round Upgraded Hopper for Nerf Nemesis | Nerf Rival Upgrade | High Capacity Ball Blaster | Indoor and Outdoor Nerf Wars | HvZ | Play

400-Round Upgraded Hopper for Nerf Nemesis | Nerf Rival Upgrade | High Capacity Ball Blaster | Indoor and Outdoor Nerf Wars | HvZ | Play
Elijah on 01 Apr, 2025

5 out of 5 stars

Great product! Great customer service! They added extra items which made the experience all the more exciting! 10/10 would recommend purchasing. Its a game changer.

Gyrosoft responded on 01 Apr, 2025

Glad you like it! That's a nice Phantom Corps Nemesis you got there!

400-Round Upgraded Hopper for Nerf Nemesis | Nerf Rival Upgrade | High Capacity Ball Blaster | Indoor and Outdoor Nerf Wars | HvZ | Play

400-Round Upgraded Hopper for Nerf Nemesis | Nerf Rival Upgrade | High Capacity Ball Blaster | Indoor and Outdoor Nerf Wars | HvZ | Play
Daniel on 12 Mar, 2025

5 out of 5 stars

Great product and it came with bonuses!

400-Round Upgraded Hopper for Nerf Nemesis | Nerf Rival Upgrade | High Capacity Ball Blaster | Indoor and Outdoor Nerf Wars | HvZ | Play

400-Round Upgraded Hopper for Nerf Nemesis | Nerf Rival Upgrade | High Capacity Ball Blaster | Indoor and Outdoor Nerf Wars | HvZ | Play
Lawrence on 12 Mar, 2025

5 out of 5 stars

Great product. Works seamlessly and leads to endless fun.

400-Round Upgraded Hopper for Nerf Nemesis | Nerf Rival Upgrade | High Capacity Ball Blaster | Indoor and Outdoor Nerf Wars | HvZ | Play

400-Round Upgraded Hopper for Nerf Nemesis | Nerf Rival Upgrade | High Capacity Ball Blaster | Indoor and Outdoor Nerf Wars | HvZ | Play

About Gyrosoft

3D Printed Nerf Modifications

Sales 135

On Etsy since 2019

3D Printed Nerf Modifications

Shop policies

Last updated on 23 Aug, 2021

Delivery

See item details for estimated arrival times.

Customs and import taxes

Buyers are responsible for any customs and import taxes that may apply. I'm not responsible for delays due to customs.

Payment options

Secure options

Accepts Etsy Gift Cards and Etsy Credits

Etsy keeps your payment information secure. Etsy shops never receive your credit card information.

Returns & exchanges

See item details for return and exchange eligibility.

Cancellations

Cancellations: accepted

Request a cancellation: within 7 days of purchase

Gyrosoft

Featured items

400-Round Nerf Nemesis Upgraded Hopper | High-Capacity Rival Ball Blaster Upgrade

All items