Are these compatible w/ Nerf Helios?

I don't have a Helios to test, but they are compatible with every blaster that uses Rival rounds that I own.

Are these rounds worth purchasing for a Prometheus? Idk if I should buy 200+ of these rounds if the performance boost is marginal at best

These accuRival rounds have a rubber-like coating on them are much more durable than standard rival. They also have less drop over distances and less curve due to being slightly smaller and having slightly less wind resistance due to the coating. Fps is a tiny bit less than standard rival. They tend to fly farther not straighter. When I ran these through my heavily modified Prometheus I was hitting 120 fps and 10 rounds per second. Almost identical to standard rival. Hope this helps!

Rival 50 Accu Round Refill Includes 50 Accu Rounds Most

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Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

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414 zł

Duties & taxes included

In stock

Sold byAmazon PolandDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🎯 Lock, load, and dominate with the most accurate rounds in the game!

ENGINEERED FOR PROS - Part of the most accurate Nerf Rival system with optimized barrels and adjustable sights
PRECISION PERFECTED - Aerodynamic dimples ensure consistent, accurate flight every time
BULK UP YOUR ARSENAL - 50 rounds per pack to keep you battle-ready and ahead of the competition
UNIVERSAL COMPATIBILITY - Works flawlessly with all Nerf Rival blasters—upgrade your entire setup
BATTLE TESTED RELIABILITY - Trusted by thousands with a 4.8-star rating—performance you can count on

The Rival 50 Accu-Round Refill delivers 50 precision-engineered Nerf Rival rounds featuring an aerodynamic dimple pattern for unmatched accuracy. Compatible with all Nerf Rival blasters, this refill pack is designed to enhance your blaster’s performance and keep you ahead in every Nerf battle. Ideal for ages 14+, these rounds are part of the most accurate Nerf Rival system, trusted by thousands of users worldwide.

Specifications

ASIN	B09NHVSL52
Age Range Description	14 YEARS+
Are Batteries Required	No
Brand Name	Nerf
Colour	Blue
Customer Reviews	4.8 out of 5 stars 965 Reviews
Included Components	50 rounds.
Is Assembly Required	No
Item Dimensions	38 x 119 x 267 millimetres
Item Dimensions L x W x H	11.9L x 3.8W x 26.7H centimetres
Item Type Name	Toy Blaster
Item Weight	0.1 Kilograms
Manufacturer	Nerf
Manufacturer Part Number	F5051
Material Type	Plastic
Maximum Age Recommendation	1188
Minimum Age Recommendation	168
Model Number	F5051
Number of Items	50
Occasion	Birthday
Operation Mode	Manual
Power Source	Manual
Size	Standard
Style	Classic
Sub Brand	Nerf
Target Audience	Children aged 8 and up
Theme	Fantasy
Toy Gun Type	Blaster Toy Gun
UPC	195166170336

Reviews

M**N

Incredibly fast and can be painful

Make sure your child is wearing body armor!

3.11.2025

H**E

Very good product

Works fine have no complaints price is not as reasonable if you live out side the USA but all in all works great

31.10.2023

た**ま

お値段が高い！

円安だからか、輸入品とは言え高額でした。

17.07.2023

B**T

What a load of balls!

As expected. Lots of blue balls.

21.05.2026

A**A

Quality refill balls for Nerf Rival Blaster

1.01.2026

V**U

👍

Exactement les mêmes qu'avec le rival

26.12.2025

V**T

Original

As bolinhas são perfeitas e funcionam normalmente nas armas.

28.10.2024

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Buy anything from 5,000+ international stores. One checkout price. No surprise fees. Join 2M+ shoppers on Desertcart.

414 zł

Duties & taxes included

In stock

Sold byAmazon PolandDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Poland.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

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