top of page

NERF PRO GELFIRE MYTHIC Review, Mods, Upgrades, Teardown (How To Take Apart And Reassemble)

Will NERF Dominate the Gel Blaster Wars with the NERF GelFire Mythic? Find out how good/bad it is.

NERF just released their first gel blaster, the NERF Gelfire Mythic, and it's about nerfing time. NERF's foam dart and ball launchers are their claim to fame and have a huge following.

Gel Blasters that shoot water bead-like gel balls fill a gap between NERF and airsoft. Both have their pros and cons, but the main advantage of gel blasters is that you can shoot 1000's or rounds of ammo, and there's no clean up afterward.

NERF Gelfire Mythic proves to be a very nicely built and well-designed blaster, but it lacks in power and therefore range. It is best suited for CQB (close-quarters battle) where stealth and strategy is more important than range. It feels much more solid, better quality and feature-rich than competitors of the same size and style. But it also costs as much or more than much stronger rifle blasters like Splatrball SRB400 and SRB1200 or UNLOCX pistols.

Watch the NERF MYTHIC test video:

I test the accuracy, speed, rate of fire, and crush some gels for science.



▶ Gellet Depot (by GelBlaster brand) Get 10% off at GelBlaster's website when you use coupon code DANIEL50302

▶ Gel Blaster Surge (Get 10% off at GelBlaster's website when you use coupon code DANIEL50302 )

▶ Newest Gel Blaster Surge Version (Amazon) - (V3) or (V2)

▶ Lipo Battery Bag 240x190x60mm Size -

▶ SentrySafe Fire and Water Resistant Bag for Documents, 5" x 11" x 15" -


I tear down the NERF Mythic to see what's inside, and how it's made. This is also a good take apart and put-back-together guide if you need to repair anything.


▼ Stronger Spring

The NERF PRO GELFIRE MYTHIC gel blaster is well-built and solid, but it's lacking in punch. The stock velocity is a bit low at about 150 FPS, when the Gel Blaster SURGE Gen 2/3 achieves 175 FPS. The GB SURGE Gen 2/3 uses a spring that is about 1.5 coils longer to achieve the higher speed. By swapping the stock NERF spring with the GB SURGE spring, the NERF MYTHIC blaster can hit 180 FPS with no issues. Since the gears inside the NERF MYTHIC are slightly larger than the standard gears in most pistol-style gel blasters, the durability of the gearbox with the stronger spring should not be an issue.

▼ Hopper Adapter For Soda Bottles

The NERF GELFIRE MYTHIC is a decent blaster, but the custom hopper design doesn't allow it to work with the standard screw-in hoppers or soda bottles. This adapter allows a standard soda bottle to be used, up to 2 liters (if you dare). Even the smallest water/soda bottles will hold over 1000 rounds, more than the stock NERF or pineapple grenade-style hoppers.

Watch this video to see how it works:

▼ Hopper Adapter For Standard Gravity Feed Hoppers

One main issue with the NERF GELFIRE is the custom hopper it uses. The Gelfire is not compatible with the standard threaded hopper that most other gravity hopper-fed gel blasters use, like Gel Blaster SURGE, STARFIRE, and SURGE XL. This means that you can only use the hopper that came with the NERF Gelfire, and you can't have any spare hoppers to prefill or replace when you inevitably lose the NERF one.

So I designed a 3D-printed hopper adapter that attaches to the NERF Gelfire feedneck and allows standard threaded hoppers to be screwed in.

Watch this video to see how it works:

▼ Tracer Mod To Shoot Glow In The Dark Gel Balls

In this video I show how I added a tracer mod to the NERF Gelfire Mythic Gel Blaster to be able to shoot glow-in-the-dark gel balls for awesome night time play.

The Nerf Gelfire Mythic uses a custom twist and lock hopper that doesn't work with other standard hoppers or soda bottles. The easiest solution for illuminating glow-in-the-dark gel balls is to use a UV LED feed neck that charges up the glow gel balls before they enter the barrel. There's an off-the-shelf UV LED feed neck that attaches onto a tactical picatinny style rail which most hopper style gel blasters use for the feedneck attachment. Unfortunately, the NERF Gelfire Mythic does not have a picatinny rail because it doesn't use a feed neck, so I 3D printed an adapter that mates into the twist and lock fitting and provides a tactical picatinny style rail for the UV LED feed neck to attach to. It works great!


▼ Hop-Up

The NERF Pro Mythic gel blaster only shoots at about 150fps (stock), but it still benefits from a hop-up for both better range and accuracy. The hop-up attaches to the end of the barrel and gives the gel ball a backspin which makes it shoot further and usually straighter.

Picatinny Rail Mounts (offset to avoid hopper)

There is a rail mount on the NERF Mythic gel blaster, but it is directly in front of the gel ball hopper. This makes it difficult to mount anything. Someone has created these offset mounts to move the rail off to the side at an angle.


▶ Products we make:


The products shown here were purchased by me with the intent to use them. I did not receive any free items, and I am not being paid or compensated for this review. The video, description, and comments may contain affiliate links. If you click on a link, I may receive a commission. Money earned helps to support my channel and bring you more informative videos about engineering, crafting, and DIY


Recent Posts
Search By Tags
Follow Us
  • Facebook Basic Square
  • Twitter Basic Square
  • Google+ Basic Square
bottom of page