The question we get more than any other. Here is the honest breakdown of how each gun works, what it is best for, and which one fits how you actually dive.
If you only read one thing, read this. The rest of the page backs it up.
Choose a railgun if
You dive the Coastal and Inshore reefs
You are learning or a beginner
You mostly dive reef, headlands and inshore water
You chase small to medium fish
You want simple, accurate, easy-reloading
You value easy handling and low maintenance
Choose a rollergun if
You want more range and power
You dive clearer water, outer reefs and open ocean
You chase bigger elusive fish and pelagics
You want more range and manoeuvrability from the same length
You want a harder-hitting shot with less recoil
You already have the basics dialled in
Side by side
Railgun vs rollergun, compared
The same barrel length, two very different tools. Here is how they stack up.
Railgun
Rollergun
Best for
Reef & inshore, small–medium fish
Open water & bluewater, elusive and bigger fish
Power
Solid and consistent
More power per barrel length
Effective range
Good for its length
Longer range, double wrap
Accuracy
Great and Effective
Excellent, flatter trajectory
Recoil
Standard
Reduced
Reloading
Fast and simple
A little more involved with double wrap
Maintenance
Simple
A bit more (roller bearings & bands)
Beginner friendly
The easiest to learn on
Better once you have the basics
Ideal conditions
Reef, headlands, shallow, limited visibility
Clear water, open ocean
Sweet-spot size
80 - 110cm
75-85cm dirty water, 100cm and up clear water
Aimrite models
V3nom Rail, Envy Pro, Vendetta King
Envy Roller, Vengeance Roller, Vendetta Single and Double Roller
How they work
A closer look at each
Railguns
Simple, accurate, versatile
The shaft sits in a track along the top of the barrel, so it leaves the gun straight and true. That stability is what makes rail guns so accurate and forgiving, and it is why they are the natural first gun and the go-to for reef and inshore water. The option to run one band for small species and 2 bands for medium sized fish.
Strengths
Very accurate
Simple reloads
Lightweight and easy to handle
Low maintenance
Trade-offs
Less range for the length
Recoil
Best for: reef, headlands, shallow and dirty water, small to medium fish, and your first proper gun.
Rollerguns
More power, more range
A rollergun runs the rubbers over a roller at the muzzle, so they stay under load through more of the shaft's travel - approx 30% more. That extra loaded distance is where the power comes from: a flatter trajectory, more range and more penetration on bigger fish, all from a barrel that stays manageable in the water.
Strengths
More power per length
Longer effective range
Reduced recoil
Great in clear water and big fish in dirty water
Trade-offs
A little more to maintain
Slightly steeper learning curve
Best for: clear water, open ocean and bluewater, bigger fish and pelagics, and divers ready to step up.
Still deciding?
Pick by how you dive
Go railgun
New to spearfishing
Start with a 90 to 100cm railgun. Easy to handle, accurate, and versatile enough to grow with you as your diving improves.
Go railgun
Reef & shore diver
If most of your diving is reef, headlands and moderate visibility, a railgun's accuracy and quick handling win out.
Go rollergun
Clear water & pelagics
Chasing bigger fish in clear, open water? A roller gives the range, shaft speed and power to reach out and land them cleanly.
Shop the range
Whichever way you lean
Every gun hand-built in Cairns and backed by a lifetime warranty.
The best gun is the one that matches your water, not the one with the most hype.
Common questions
Roller vs rail FAQ
Which is better for a beginner?
A railgun. It is accurate, forgiving and simple to load and maintain, which makes it the easiest gun to learn on. Most divers start on a rail and add a roller later.
Do rollerguns really hit harder?
Yes. The rubbers stay loaded over more of the shaft's travel, so you get more power, range and penetration than a railgun of the same length, plus reduced recoil.
What length should I get?
Around 90 to 100cm is the sweet spot for a reef railgun. Rollers shine from 100cm and up. Match the length to your visibility and target fish.
Are rollerguns harder to look after?
A little. There is the roller and bands to keep an eye on, but the basics are the same: rinse in fresh water, dry out of the sun, store safely and check your rubbers.
Which is more accurate?
Both shoot well. The railgun's straight-tracking shaft makes it slightly more forgiving up close, while the roller's flatter trajectory helps at range.
Are Aimrite spearguns made in Australia?
Our spearguns are hand-built in Cairns and backed by a lifetime warranty. We are a proudly Australian-owned business.
Still not sure?
Tell us where you dive and what you are chasing. One of our team, actual spearos and not call-centre staff, will point you at the right gun.
