Down Deep Drones

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Down Deep Drones

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Custom Designed and Built ROVs and ROV Mounted Tools

Custom designed and manufacture of  ROVs, (underwater drones) and tools to mount on them.

15 years of experience mounting tools on a variety of underwater drones for purposes such as Spearfishing, Marine Debris Collection, Invasive Marine Species Culling and much more.

The Underwater drone mounted spear gun system was the first commercial one in the world and still by far the best.


The Mares 41 cm and 58 cm Pneumatic Spearguns I mount on the QYSEA Fifish and Blue Robotics Underwater Drones have an effective range of up to 3.75 metres.


I am aware that there is a  scammer  who has  got my products listed on their websites without any capacity to supply what it is they are advertising. If you are interested in using ROVs for any prupose, whether you are a government body or other, please contact me before you make any decisions. 


I am actually the only one that makes all of the tools including the Underwater Drone Mounted Speargun and the Invasive Sea Urchin Culling ROV mounted tools.

Underwater Drone Mounted Spear Gun

Why a Pneumatic Speargun? Pneumatic Spearguns are by far the easiest to load and create the least amount of drag in the water on the underwater drone. This gives you considerably more control when it comes to aim. Plus you don't have the risk of rubber bands being sucked into the drone thrusters and burning out motors. 


VIDEO https://www.youtube.com/watch?v=BSQCS6vc9xo

 More Videos Below



Underwater Drone Mounted Spear Gun Package

Price AUD 1000


What's included?


Express Postage to anywhere in the world.


Mares 41 or 58 cm Pneumatic Spear gun, modified to reduce drag. 


CNC Machined T6-6061 Alloy clamps triggger guides and frame.


Step by step assembly manual  with photos (takes about 2o minutes for you to complete mounting on your Fifish.) 

Find out more

A change in direction in my life has occurred! The Spear Fishing Attachment Business is now FOR SALE. If you are keen on spending time on the water, creating videos and having fun, this would be the perfect business for you. All the machining files for th parts included, reputable machinists and component suppliers, as well as two 30 cm pneumatic spearguns as shown in photos, instruction manuals etc supplied. Price for international buyers is AUD 6000. Price for Australian buyers is AUD but includes everything in the photos here. That includes the two Fifsh EVOs (one new) tether reel, two controllers.

Get in Touch

Videos

Invasive Sea Urchin Culling ROV

Uses a variety of tools mounted on an underwater drone to cull the invasive sea urchins devastating marine environments around the world. The motor is controlled by our custom made electronics attached to the underwater drone.

Range of 42cm Spear Gun on Underwater Drone

Shows the effective range of the spear gun

Accuracy of Spear Gun on Underwater Drone

Available now in 42cm and 58cm Mares Pneumatic options

Some of my journey

Video

Underwater Drone with a Spear Gun attachment Usage and Safety

Selective targeting of the fish you want with no incidental bycatch of any other fish.

Target practice with the Underwater Drone with Spear Gun

Video

Ship Hull Anomaly Detecting ROV

Sonar, DVL equipped, depth rated to 350 metres, machined from solid alloy. 

Sharks at the Cascade Jetty on Norfolk Island taking a high degree of interest in the Fifish V-EVO underwater drone.

Prototype Golf Ball Collecting ROV

The first of many bespoke tools and ROVs designed by Downdeepdrones.com

Video

PROTOTYPE MARINE DEBRIS COLLECTING UNDERWATER DRONE

This unit was rapidly superseded with a better unit.

ROBOTIC CLAW ROPE CUTTER

Contact Us

Down Deep Drones

Phone +61 429542810 email downdeepdrones@gmail.com

Open today

09:00 am – 05:00 pm

Available 7 days a week

Copyright © 2026 Down Deep Drones - All Rights Reserved.

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