Roller Speargun Muzzle Kit from Speardiver

Quote from seal

I dont agree with the difficult loading and bad manuverability.The newest pulley rollers dont need massive bodies due to the absolute lack of recoil,so they can be verry verry thin and hydrodynamic

Couldn't agree more. When you compare regular band guns to rollers, you don't gain much recoil control, but you do gain power but that comes with a bulky nose. But with pulley guns you get both better maneuverability than a roller and an increase in power.

That gun could very well be the most beautiful gun I have ever seen. It's stunning! Who made it?

But yeah, this is a roller gun thread. Maybe in a few years we will actually see a designated pulley roller thread;-)

Hi Antonio! Good to see you around!

I have been using a Roller gun lately and cannot be more pleased. I had a wrist injury that probably will eventually need surgery and shooting my double band gun had become a painful experience. The day after every spearfishing trip was a nightmare in terms of pain in my wrist. Now it's not anymore. Recoil is almost non existent, loading is faster and power is pretty much the same as a double banded gun.

A single roller muzzle won't shoot stronger than a double band speargun, but will load faster and have less recoil, thus increasing accurancy.

I have two more videos from two days ago. Water was shitty, but I managed to get our dinner.

http://www.youtube.com/watch?v=pwN6aYOOhxI

http://www.youtube.com/watch?v=x4i4N5JcS_E

Quote from Marco

Hi Antonio! Good to see you around!

I have been using a Roller gun lately and cannot be more pleased. I had a wrist injury that probably will eventually need surgery and shooting my double band gun had become a painful experience. The day after every spearfishing trip was a nightmare in terms of pain in my wrist. Now it's not anymore. Recoil is almost non existent, loading is faster and power is pretty much the same as a double banded gun.

A single roller muzzle won't shoot stronger than a double band speargun, but will load faster and have less recoil, thus increasing accurancy.

I have two more videos from two days ago. Water was shitty, but I managed to get our dinner.

http://youtu.be/pwN6aYOOhxI

http://youtu.be/x4i4N5JcS_E

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Hey Marco,
Hope your wrist becomes better, but good to hear the roller has helped.

I have some on/off issues with my shoulder, I think the rotator cuffs:-(
As a side note, that's also why I am working hard on making two old Mares Mirage pneumatic guns work since they have a loading system where you divide the loading effort into smaller parts.
Last time, I messed up my shoulder was actually loading a regular bandgun. But it doesn't happen when loading pneumatics, at least.

Nice dinner cudas - I didn't know they respond to grunt sounds. I will try that someday:-)

I guess where there is a market there will be a product. I assume this rollergun muzzle has been tested by the developers, but the line wrap guide prongs made of plastic on the upper nose seem a bit vulnerable. In the normal course of action they will probably work OK, but if the unloaded gun takes a hit on some hard object then they may break off. Many years ago when plastics were not as good as they are today thin section parts that provided a long lever arm to their base often snapped off, so mould makers made them thicker and more faired in to the base that they projected from or replaced them with metal prongs screwed into or embedded in the moulding. Damage was incurred by mishaps both in and out of the water when the gun was not under the diver’s directional control and the collisions had not been anticipated.

Other than that the design looks nice from a stylistic viewpoint and the alternate position band anchor rail for fitment under the barrel is a good idea provided the barrel tube is sealed at the fixing screw locations for non-foam filled barrels.

The material of this muzzle is incredibly strong. I put it under serious stress in an attempt to make it fit speargun tubes that it wasn't meant to fit, in other words resting it on the floor and banging on the other end of the tube. I've also filed down one because I knew I will only route the line in one direction. It's extremely unlikely the line guides will brake off, you'll know this the moment you have the muzzle in your hands.

I guess, it's fiber reinforced nylon? That seems to be the go-to plastic for high strength use these days. If they can make rifles and handguns and what do I know out of it, I think it's all good;-)

But you opted for no ball bearings? I guess nylon on nylon has very little friction and takes out a part that might need to be serviced or changed? Just that since others have it, I would be worried it could impact sales and make your version look less advanced?

But I know by now, you are not one for bling and if bearings are more bling than real advantage I get you.

Quote from Diving gecko

I guess, it's fiber reinforced nylon? That seems to be the go-to plastic for high strength use these days. If they can make rifles and handguns and what do I know out of it, I think it's all good;-)

But you opted for no ball bearings? I guess nylon on nylon has very little friction and takes out a part that might need to be serviced or changed? Just that since others have it, I would be worried it could impact sales and make your version look less advanced?

But I know by now, you are not one for bling and if bearings are more bling than real advantage I get you.

Unless youre putting un-necessary load on the rollers, nylon on the ss roller shaft/pin should hold up for a long time, and with negligible friction. Not sure why guys like bb's on their rollers, just another thing to get jammed up with sand IMO. Not to mention the price difference between solid and bb sheaves.

Quote from Akira dkt

Unless youre putting un-necessary load on the rollers, nylon on the ss roller shaft/pin should hold up for a long time, and with negligible friction. Not sure why guys like bb's on their rollers, just another thing to get jammed up with sand IMO. Not to mention the price difference between solid and bb sheaves.

Yeah, I reckoned it could just be the old sales trick. It's what happens when more products come to market. Some vendor adds bling to differentiate their product and make us believe it is better.
For instance, we all know that carbon fiber makes everything better. Everything. I think my next buy should be a carbon fiber toothbrush;-)
But the point is good. Even if roller bearings are slightly smoother, they wont be once they have a bit of sand or corrosion in them.

PS. In regards to carbon fiber, I am actually working on some CF handles for my pneumatic guns, haha. I am sure, it will make the gun soooo much better.

Quote from Diving gecko

PS. In regards to carbon fiber, I am actually working on some CF handles for my pneumatic guns, haha. I am sure, it will make the gun soooo much better.

You will have the fastest handle in the sea.:D carbon Fiber got it's start with Thomas Edison.

Cheers, Don

Quote from Don Paul

You will have the fastest handle in the sea.:D

Cheers, Don

Still working on some mods to the old Mirage;-). But it's slow progress. I do have a build log of sorts over on deeperblue, but will post here once I have some real progress.

Quote from Diving gecko

Yeah, I reckoned it could just be the old sales trick. It's what happens when more products come to market. Some vendor adds bling to differentiate their product and make us believe it is better.
For instance, we all know that carbon fiber makes everything better. Everything. I think my next buy should be a carbon fiber toothbrush;-)
But the point is good. Even if roller bearings are slightly smoother, they wont be once they have a bit of sand or corrosion in them.

PS. In regards to carbon fiber, I am actually working on some CF handles for my pneumatic guns, haha. I am sure, it will make the gun soooo much better.

If strong and light is what you're looking for, CF is the way to go. It is by no means the perfect, fix all, material many manufacturers are pushing. It has its positives and negatives.

I personally do like the look of carbon weave... that said i like the look of nicely finished timber equally as well.

You wont even know the handle is there. :laughing: I'm interested to see how you're incorporating the handle into the pneumatic mech. should be sweet:thumbsup2:

Quote from Akira dkt

If strong and light is what you're looking for, CF is the way to go. It is by no means the perfect, fix all, material many manufacturers are pushing. It has its positives and negatives.

I personally do like the look of carbon weave... that said i like the look of nicely finished timber equally as well.

You wont even know the handle is there. :laughing: I'm interested to see how you're incorporating the handle into the pneumatic mech. should be sweet:thumbsup2:

Sorry, wrong choice of words. I should have said "grip" and not "handle".
I'd love to try to make a whole handle one day, but that's way more tricky and potentially dangerous, so for now, I am just reshaping the grip.

Truth is, I have no idea as to how to work in wood. I basically suck at it. Wish I didn't...:-(
But somehow, I can kinda work in composites better.

Since this is way off the original topic, I'll just leave you with a few teaser pics. Actually, Tin Man's thread about the lost wax process he used for his CF barrel led me down this path.
As promised, I will do a proper thread here once I actually have a working grip;-). A few more weeks and I should be there.

In short, I chopped of the grip of an original Mirage handle. Then built up a custom grip onto the amputated handle. Took a silicone mold off of that. Poured molten wax into the mold and eventually, laid up CF onto the wax handle. I will then tear down the custom handle and mount the new CF one instead.

Hey Gecko, that's a cool project. I would love to see these images and story with it's own ''Miarage'' title in Guns.
That way myself and other Mirage disciples around the world will find their way to it via the net.
Nice work mate.

Cheers, Don

Quote from Don Paul

Hey Gecko, that's a cool project. I would love to see this images and story with it's own ''Miarage'' title in guns.
That way my self and other Mirage disciples around the world will find their way to it via the net.
Nice work mate.

Cheers, Don

Will do, promise.
I have it going over on deeperblue, as I was a long time member there before I found this great place.
I was thinking to put most of it up here, too once I am closer to completion.

As you can tell by now, I don't know how to keep posts short though, so instead of just c+p'ing all my babbling from over there, I wanted to condense it a bit before posting here.

Give me a few days to figure out how to best go about this;-)

Does anyone has pictures of this kit mounted on a pipe gun? I am particularly interested in the multi stage anchoring bracket. Thanks in advance