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Nerf Rival Prometheus MXVIII-20K

4.7 4.7 out of 5 stars 2,388 ratings

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Purchase options and add-ons

  • Advanced acceleration system: The Prometheus MXVIII-20k Nerf Rival blaster features an Advanced Acceleration System that fires up to 8 rounds per second*
  • Rechargeable battery: This fully motorized Nerf Rival toy blaster comes with a rechargeable NiMh battery and a wall charger so there’s no need to stock up on batteries
  • High-capacity hopper: This Nerf Rival Phantom Corps blaster has an easy-loading, high-capacity hopper that holds up to 200 Nerf Rival rounds
  • Comes with 200 high-impact rounds: The Nerf Prometheus MXVIII-20K blaster comes with 200 Nerf Rival high-impact foam rounds
  • Fires rounds at a velocity of 100 feet per second: Vanquish opponents as you blast rounds as a velocity of 100 feet per second (30 meters per second).For use with Nerf Rival products only
  • Includes 1x 9.6volt NiMh rechargeable battery

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Nerf Rival Prometheus MXVIII-20K


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Product Description

Experience the intensity of this NERF Rival toy blaster that bombards opponents with up to 8 rounds per second*! The fully motorized Prometheus MXVIII-20K blaster holds a whopping 200 rounds in its easy-loading hopper and fires rounds at a velocity of 100 feet per second (30 meters per second). It includes a rechargeable NiMh battery, so there’s no need to stock up on batteries to power up this juggernaut. It comes with 200 high-impact rounds and has a trigger lock, tactical rail, and shoulder strap. The Prometheus MXVIII-20K blaster is part of Phantom Corps, a group of rogue specialists who may join Team Red or Team Blue today, then challenge them tomorrow. Wear the included red and blue flags to join Team Red or Team Blue, or use them in capture-the-flag battles. NERF and all related properties are trademarks of Hasbro. *Highest rate of fire is with a full hopper and fresh battery. Rate of fire decreases as the hopper empties and the battery drains

What's in the box

  • Includes blaster with rechargeable NiMh battery, charger, 200 rounds, 2 flags, shoulder strap, and instructions.
  • Looking for specific info?

    Customer reviews

    4.7 out of 5 stars
    4.7 out of 5
    2,388 global ratings

    Customers say

    Customers like the quality, speed and fun of the toy gun. For example, they mention it's powerful, shoots a solid 100 feet and is a cool piece of machinery. They're also satisfied with the capacity, and accuracy. That said, some complain about the performance and battery life.

    AI-generated from the text of customer reviews

    118 customers mention103 positive15 negative

    Customers like the quality of the toy gun. They say it's powerful, accurate, and a cool piece of machinery. Customers also say it packs a punch and is a good gun to lay down suppressive fire when trying to move positions.

    "...Defeats all blasters in a warLooks intimidating and coolBattery lasts for quite some timeCould be used as a turret at a base..." Read more

    "...otherwise, the reliability is great. it seldom jams unless it's very humid and you're fighting outside...." Read more

    "...of fire is absurd, the power is outstanding, and the reactions it gets are second to none!Brass Tax Time:Pro's:..." Read more

    "...The firing power of almost 300 balls is insane. It packs a punch. They sting when they hit you. Almost 8 balls a second is CRAZY awesome...." Read more

    64 customers mention58 positive6 negative

    Customers are impressed with the speed of the toy gun. They say that it fires at a high rate of speed, and the ammo is able to empty the chamber in no time. Customers also mention that the gun shoots hundreds of rounds in seconds, and has an absurd rate of fire.

    "...The blaster has many pros and a few cons.PROS:High rate of fireShoots very hard200 rounds is incredible...." Read more

    "...as long as you've got enough ammo to supply it, it's fire rate and ridiculous ammo capacity make it the perfect support gun...." Read more

    "...This baby absolutely BURRIES people in balls. The rate of fire is absurd, the power is outstanding, and the reactions it gets are second to..." Read more

    "...My son received this for his birthday! It rapidly fires the bullets and is truly incredible! It is worth every penny" Read more

    49 customers mention49 positive0 negative

    Customers find the toy gun very well made and fun to play with. They say it's awesome fun for nerf wars, and rains down balls on their enemy. The toy holds up to constant play and keeps kids busy. Customers also say it makes kids run for their lives and is the best thing for kids to play.

    "...It is UNBELIEVABLY fun to use. Not having to reload often makes it so much less work. I highly reccomend adding one to your collection...." Read more

    "...Rounds disappear quickly, not really precise. Fun. Though, if I could do it again, I'd wait until it's at least 60% off." Read more

    "...Its also fun showing off my new toy (I'm 60 yo and never enjoyed anything like this)...." Read more

    "...I created him a target out of a large box and this keeps him busy for hours...." Read more

    29 customers mention29 positive0 negative

    Customers are satisfied with the capacity of the toy gun. For example, they mention it holds more than 200 rounds, has a large ammo bin, and can hold up to 300 rounds. The size and freedom of storing ammou makes it simple and easier to reload.

    "...PROS:High rate of fireShoots very hard200 rounds is incredible. It can even hold comfortably 250 rounds and still work..." Read more

    "...as you've got enough ammo to supply it, it's fire rate and ridiculous ammo capacity make it the perfect support gun...." Read more

    "...Holds ~275 rounds (and trust me you will need them)Includes 200 balls..." Read more

    "It's that simple. This thing is a monster! You can fit almost 300 balls in this things hopper. The battery life is incredible...." Read more

    13 customers mention13 positive0 negative

    Customers are satisfied with the accuracy of the toy gun. For example, they mention it never jams, the rounds disappear quickly, and the rival balls are accurate.

    "...it's also surprisingly accurate, though that accuracy will deteriorate slightly over time and extensive use...." Read more

    "...They were accurate and with the 7 round 3d printed cylinders they had plenty of power...." Read more

    "...It doesn't need to be too accurate because it holds so many rounds. I recommend the Prometheus. I would buy it, what do you think???" Read more

    "This. Thing. Is. AWESOME! It’s pretty freaking accurate considering nerf darts go far and wide...." Read more

    57 customers mention27 positive30 negative

    Customers are mixed about the battery life of the toy gun. Some mention that the battery is excellent and has never died on them during a game, while others say that the rechargeable battery pack will run down and leave them without a usable blaster. Some customers also mention that there is a wiring or battery glitch. Overall, the opinions are mixed and the product is recommended for ages 8 and up.

    "...The rechargeable battery pack will run down and leave you without a usable blaster until it recharges.Rival ammo is expensive...." Read more

    "...Looks intimidating and coolBattery lasts for quite some timeCould be used as a turret at a baseFast and easy reload and unload..." Read more

    "...In my experience it needs 4 plus hours to charge, so keep that in mind...." Read more

    "...the battery life is excellent and i've never had it die on me during a game...." Read more

    40 customers mention23 positive17 negative

    Customers are mixed about the value of the toy gun. Some mention that it's defiantly worth the big bucks, while others say that it’s a little pricy.

    "if you can stomach the price tag, it's worth every penny...." Read more

    "...You could lose rounds quite easy, and rounds are not super cheapI think that this blaster is the game winner...." Read more

    "...this thing for $120 and if you can I would consider that a good price on a great blaster...." Read more

    "...Cons- a bit expensive but well worth it because the other nerf guns we bought are not as sturdy as this one and they jam a lot-..." Read more

    19 customers mention0 positive19 negative

    Customers are dissatisfied with the performance of the toy gun. They mention that the light is green, the safety is off, and the blaster still doesn't work. The flywheel doesn''t operate, and after one charge and one use, the light doesn'.

    "...The gun jams and stopped working, if both left and right flywheel housing are jammed with balls...." Read more

    "...However, you press the triggers and nothing happens! Totally non working!..." Read more

    "...Worth it. Until…It stopped working randomly. Wouldn’t fire or do anything. We found out that the battery had been slightly melted...." Read more

    "After one charge and one use. Won’t come back on, for this type of money you’d expect better." Read more

    gun started jamming and vomiting balls  after 2 weeks but i was able to fix it
    5 Stars
    gun started jamming and vomiting balls after 2 weeks but i was able to fix it
    My kids love this toy... It was the most expensive toy I bought for them sofar... Shipping packing was just right and item arrived much faster than I thought it would.Prosdoes not jamshoots 200 balls fast (i think the hopper can fit 100 more, problem is where can I buy 100 nerf rival rounds?)rechargeable battery (it took 5 hours to charge though)balls shoots at a high velocity consistently without any dudsCons- a bit expensive but well worth it because the other nerf guns we bought are not as sturdy as this one and they jam a lot- looks like the balls are being skinned as they go through the flywheel as I noticed some of the balls are loosing their skin. I also noticed yellow dusts on our floor. I might need to buy new balls to replace the balls sometime in the future.After 2 weeks of daily use, the balls became 10%-15% smaller because of constant ball thread shedding everytime we shoot. The smaller balls got stuck inside both the left and right flywheel housings. The gun jams and stopped working, if both left and right flywheel housing are jammed with balls. The gun only roll out the balls off the barrel like vomiting if only one housing is jammed with a ball meaning only one flywheel is working and turning. The solutions are number 1 remove the hopper then remove the jammed balls from the flywheel housings make sure that the flywheels are loose (meaning you can turn them with your fingers freely) plus number 2 replace the worn out balls with new ones to avoid the jamming of the flywheels. I ended up buying xshot zuru chaos refills because I can't find rival rounds available in stores in my country. xshot zuru chaos balls are much sturdier and does the same thing although they are colored red which is much harder to look for.
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    Top reviews from the United States

    Reviewed in the United States on December 26, 2018
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    Top reviews from other countries

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    Guadalupe
    5.0 out of 5 stars Producto original y buena calidad
    Reviewed in Mexico on May 24, 2020
    Mr. Gourd
    5.0 out of 5 stars Wow! How can Nerf top this?
    Reviewed in Canada on October 26, 2019
    4 people found this helpful
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    malcolm
    5.0 out of 5 stars Great value and product
    Reviewed in Canada on May 26, 2020
    Alejandro P.
    5.0 out of 5 stars Impresionante
    Reviewed in Mexico on June 26, 2019
    Hedwig Poon
    5.0 out of 5 stars Fun, fun, fun.
    Reviewed in Canada on April 10, 2020