'Proton Pack' Rival Hopper feed 20 balls/second!
'Proton Pack' Rival Hopper feed 20 balls/second!
'Proton Pack' Rival Hopper feed 20 balls/second!

'Proton Pack' Rival Hopper feed 20 balls/second!

Regular price $175.00 Sale

***BEFORE PURCHASING: Please read the entire listing to understand the requirements of the build***

Please note that since this product contains some larger, overnight prints this product can take 3-5 days to print and has a lead-time associated with it.  Pre-built Proton Packs can take 1-2 weeks.


The Proton Pack is a custom designed, 3D printed hopper feed that allows for 20+ rounds per second.  This is offered as a do-it-yourself kit, or a fully assembled and pre-soldered unit. 

*Do not use new Headshot ammo with this product, the rounds are too stiff and can damage your Proton Pack or connected blaster*

The kit version requires soldering and assembly. Both versions will require a 3S Jupiter (containing 3S Kraken motors), or other Rival blaster such as the Perses, Zeus, Hera, Khaos (adapters sold separately). Standard Nerf Rival blasters will need to be rewired for a 3s battery to be compatible with the Proton Pack.

• High reliability, jam-free design. Thoroughly tested.
• Compatible with absolutely any Rival ammo including 3rd party ammo, and cheap knock-off rounds. Ammo not included.
• High power custom designed brushless blower with 40 mm/H2o of static pressure. Enough to feed your blaster 4+ feet vertically
• 3s Jupiter compatible (2s Jupiter Blasters can be converted to Kraken motors to be compatible)
• Simple circuit, easy to install! Simply plug the pack's XT-60 cable into your blasters battery XT-60 plug. A standard re-wire for 3s is all that's required.

• 20+ rounds/sec continuous ball feed
• 30+ rounds/sec 'burst' feed rate for first 50-60 shots (Note, fire rate is ultimately determined and limited by your blaster).
• Printed in PLA filament
• Battery tray dimensions: 137 x 49 x 25 (LxWxH)
• Dimensions of hopper unit without container: 8" X 4.75" x 4.5" (LxWxH)
• Dimensions of hopper unit with 1-gallon container: 14.5" x 4.75 x 5.5"
• Dimensions of 1-gallon container: 5.5" round, 10.5" height
• Dimension of hopper ring (size you would cut a container hole to attach to a flat plate): 4.75"

• 10x 3D printed parts: Hopper Body, Base Plate, Top Lid, Snorkel, Impeller, Custom Blower, Mounting ring, and Swiveling hose connector
• Custom PCB control board (features current detection and simplifies wiring!)
• 2205 Brushless blower motor
• 30A Brushless ESC
• 1 High quality, high torque 37D-sized all metal gear motor
• 20+ M3 stainless machine screws, square nuts.
• Pre-installed Brass inserts
• XT-60EM Mountable battery connector
• 7' of red and black 14AWG wire
• 4' of 1" hose
• 10 hose clips
• 2.5mm Allen key (batch #1 didn't include this)

• Rival compatible blaster re-wired with an XT-60 connector
• Hose adapter to your blaster (sold separately or optionally on this page)
• 3s Lipo Battery. We HIGHLY recommend the high quality 2700mAh pack that is listed ONLY on this listing. We will make other options available as we get them in. The Turnigy 1500mAh 35-70c pack is also compatible.
• Soldering iron, solder and basic tools (for DIY-KIT version)
• A relatively airtight container, bucket, etc. You can purchase the 1-gallon container on this listing. 

DUEL WIELDING: In order to duel wield the proton pack, you'll need two independent packs and blasters. While I did test a single unit that could feed two systems, the fire rate was cut approximately in half, so I thought it best to use two units, rather than reduce the fire rate by 50%. We do not recommend modifying the hopper to attempt a duel-wield out of a single pack, as the airflow on the fan will not be high enough to feed two reliably.

AMMO: All 'Rival' sized ammo types are compatible, ammo not included.

OPTIONAL ADD-ONS: (Discounted price just for this listing)
• Battery
• Charger + LiPo Bag + LiPo Alarm

 Jupiter blaster (3s required)
 Blaster side Adapters






Customer Reviews

Based on 41 reviews
Ryker M.
Pending Reviewish

To start I want to say the customer support is 6 out of 5 for sure. But the review is about the product.
I bought the kit. Built it in about 7 hours, going through the video on the site very slowly. After about 20 days of having the Proton Pack board fry, get a new one, install it, and burnt out again. They were kind to take a look at my proton pack and fix it. Messed up on the ESC power portion. Recommend they keep track of the cabling for the blow motor as that part tripped me the most in the video. I really love the idea and want this to work, but it's the same problem even after they fixed it. I emailed Out of Darts once again for Round 3. Pending Response. Reason why i am making the review as this has been going on for about 50 days now.

Larry C.

Great Blaster combo pack fun fun fun blasting foam!

just amazing

Awesome ! I had accidentally mixed wires and burned out pcb so they sent me not only pcb and esc, all the hardware, wires, xt60, and brushless blower motor in free! Out of darts has very good service for customers and replies question very quickly. It has very good power and no jam and no single feeding issues with 1000rpm jupiter shooting 450 rounds which is maximum for stock tank.

Daniel C.
Much Love

Loved this product so much, bought a second.

Spencer D.

Proton pack with the Jupiter is so much fun to shoot.

Easy to assemble, and the video tutorial is great.
I have used official nerf rival, headshot, and dart zone ammo and they all work. BUT sort through you headshot and separate the harder balls they will jam you Jupiter!