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!

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Rival 50-Round Refill

Product ID: 415641795

Details

Brand
Nerf
Size
Standard
Colour
Blue
Model name
RIVAL 50 ROUND
Sport
Airsoft

🎯Enhanced aerodynamic design for pinpoint accuracy

🔵50 high-performance Accu-Rounds per refill pack

⚙️Compatible with all Nerf Rival blasters for seamless integration

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C$3604

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In stock

Sold byAmazon NicaraguaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🎯 Lock, load, and dominate with precision-packed power!

BULK UP YOUR ARSENAL - 50 rounds per pack to keep you battle-ready and ahead of the competition
BATTLE TESTED QUALITY - Trusted by thousands with a 4.8-star rating—because winning is everything
UNIVERSAL COMPATIBILITY - Works flawlessly with all Nerf Rival blasters—upgrade your entire system
OPTIMIZED FOR PERFORMANCE - Part of the most accurate Nerf Rival system with adjustable sights and streamlined barrels
PRECISION ENGINEERED FLIGHT - Dimpled Accu-Rounds ensure consistent, accurate shots every time

The Nerf Rival 50-Round Refill pack delivers 50 precision-engineered Accu-Rounds featuring an aerodynamic dimple design for consistent, accurate flight. Compatible with all Nerf Rival blasters, this refill is part of the most accurate Nerf Rival system, designed to enhance your blaster’s performance with adjustable sights and optimized barrels. Perfect for serious Nerf enthusiasts aged 14 and up, this pack ensures you stay battle-ready with trusted quality from Hasbro.

Specifications

ASIN	B09NHVSL52
Age Range Description	14 YEARS+
Are Batteries Required	No
Best Sellers Rank	#52,813 in Toys ( See Top 100 in Toys ) #375 in Toy Blasters & Foam Play
Brand Name	Nerf
Color	Blue
Customer Reviews	4.8 out of 5 stars 935 Reviews
Included Components	50 rounds.
Is Assembly Required	No
Item Dimensions	38 x 119 x 267 millimeters
Item Dimensions L x W x H	11.9L x 3.8W x 26.7H centimeters
Item Type Name	Toy Blaster
Item Weight	0.1 Kilograms
Manufacturer	Hasbro
Manufacturer Maximum Age (MONTHS)	1199
Manufacturer Minimum Age (MONTHS)	168
Manufacturer Part Number	F5051
Material Type	Plastic
Model Number	F5051
Number of Items	50
Occasion	Birthday
Operation Mode	Manual
Power Source	Manual
Size	Standard
Style	Pistol
Sub Brand	Nerf
Target Audience	Children aged 8 and up
Theme	Fantasy
Toy Gun Type	Blaster Toy Gun
UPC	195166170336

Reviews

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

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

M**N

Incredibly fast and can be painful

3.11.2025

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