Roller Speargun Muzzle Kit from Speardiver

Looks very good

Very complete kit

SITES BEEN HACKED!! NO WAY DAN WOULD SELL THAT...NO WAY I TELL YA!!!! :laughing:
Dan i am interested in one just to see for myself what all the hype is about.

Quote from Dude george

SITES BEEN HACKED!! NO WAY DAN WOULD SELL THAT...NO WAY I TELL YA!!!! :laughing:
Dan i am interested in one just to see for myself what all the hype is about.

If you think hype as in the latest in gun development, then rollers are sooo last something:laughing:.

Have a look at demultiplied/compound guns;-). More efficient, much less recoil, less nose heavy/bulky.
Not as simple as a roller, they def have more parts, granted. Also, the aftermarket add-ons needed are still quite expensive.
(They also spelled demoltiplied sometimes).

Now, it's a bit like the old V8 muscle car vs. small, agile euro sports car debate, so I reckon it will take some years before you rubberheads in the US will spread your love to the demo guns, haha:-)

I admit, I say this with my hype meter all the way in the red, without having even shot one!
But the theory of this type of gun just makes so much sense and so does the videos of them shooting...:cool2:

A demo-rigged gun is the only gun I would consider over my pneumatics for their versatility, precision and power in a small size. I am actually looking at one these days, they are just too expensive... But for you home builders out there - not that much in it.
To a nerd like me, I kinda even like that they are not too simple, haha. So far, I think that's the only downside.

(Dan, just move this to it's own place if you feel like it. I was kinda on the fence about even putting it here. But I know you can take some friendly jabs, so just think of it as that and a teaser of what's to come - perhaps even an idea for you to look into (if you haven't already)).

I'm an old fart still open to new ideas but 'tempered' by Murphey's Law. Simplicity is hard to compete against, i.e. , the snorkle!

Quote from Diving gecko

If you think hype as in the latest in gun development, then rollers are sooo last something:laughing:.

Have a look at demultiplied/compound guns;-). More efficient, much less recoil, less nose heavy/bulky.
Not as simple as a roller, the def have more parts, granted. Also, the aftermarket add-ons needed are still quite expensive.
(They also spelled demoltiplied sometimes).

Now, it's a bit like the old V8 muscle car vs. small, agile euro sports car debate, so I reckon it will take some years before you rubberheads in the US will spread your love to the demo guns, haha:-)

I admit, I say this with my hype meter all the way in the red, without having even shot one!
But the theory of this type of gun just makes so much sense and so does the videos of them shooting...:cool2:

A demo-rigged gun is the only gun I would consider over my pneumatics for their versatility, precision and power. I am actually looking at one these days, they are just too expensive... But for you home builders out there - not that much in it.
To a nerd like me, I kinda even like that they are not simple, haha. So far, I think that's the only downside.

(Dan, just move this to it's own place if you feel like it. I was kinda on the fence about even putting it here. But I know you can take some friendly jabs, so just think of it as that and a teaser of what's to come - perhaps even an idea for you to look into (if you haven't already)).

Display More

You talking about the pulley guns? Never shot one, but then again i feel like theyre a bit too complicated....(pulleys....) I can see the appeal though, (very short band stroke)(similar to the idea of a ring snare...for any trapper/hunters out there...but i digress) I dont like the idea of a block sliding up and down the barrel of my gun.

Yup, pulley guns;-)

The real benefit is not only that all of the rubber is efficiently used - a roller does that too - the real benefit is that power is more gradually applied. Not one crazy hit in the beginning that then dies out to almost nothing soon after.
This change in the "power curve" should result in very little recoil and that, supposedly, is the main key to this type of gun's increase in performance, range and precision.

I get you with the pulleys scraping along the barrel - but if they don't scrape, I don't think it's a real life issue.
Sight line is supposedly good too as the rubbers are not lying next to the shaft.

I totally get why some people would find them overly complicated and too many things could break. But I shoot pneumatics and they are already a bit of a handful to repair in the field. A demo/compound/pulley gun would actually, for me, be simpler;-)

They also take a bit longer to load, but I don't see that as a real issue. Others may do depending on the type of fish they shoot.

Quote from Rustyflopper

I'm an old fart still open to new ideas but 'tempered' by Murphey's Law. Simplicity is hard to compete against, i.e. , the snorkle!

Rollers are perfect for old farts, the first patent is 1948.:D;) I've got at least 3 of the old things.
I'm gonna get one of Seals guns some day before he realizes what his time is worth.;)

Cheers, Don

Ouch Don, I was born 2 years before 'rollers' ! Truth is I will probably buy one and stick it on the end of one of Dan's carbon tubes. Been really liking these barrels they have held up better than I thought. Following these forums is costing me 'fish money'. A couple of 4 lb lobsters and a couple of 5 lb Sama should cover expenses. Gotta love Island life!

Quote from Dude george

SITES BEEN HACKED!! NO WAY DAN WOULD SELL THAT...NO WAY I TELL YA!!!! :laughing:
Dan i am interested in one just to see for myself what all the hype is about.

Exactly!!! Impossible.
C

If you're going to buy a roller muzzle, might as well buy a well made one

Finally back on after what seems like years of adventures, trips, dirt bike injuries, and taking fish from waters in South Pac, Hawaii, Mexico, and Cali. (and even a few shots in dirty, low via fresh water in AZ). I have determined that the roller concept has its greatest returns and performance on short guns for holes, bad vis, ledge hunting and getting inside structures and under ledges. A short gun with traditional bands just can't get enough stretch to send a shaft to terminal velocity without the prestretch design of the roller. The benefit decreases exponentially though after about 110/120 cm IMHO and Dan's theory of traditional band set up is best on longer guns because now the band stretch can reach the percentages needed for the same result. Especially with small id bands.

Dan, that roller muzzle is the best looking roller I've seen. I definitely want to get one and check its performance. I've got both MVD and Merou, and have shot the Manny Sub. Yours by far has the best aesthetics of any I've seen.

I've shot my converted 90 cm Pathos open carbon roller and Aimrite 105 roller with deadly results to fish populations, and have used my longer banded guns in open and clear seas with same results. Never had issues with tangles or loading with my rollers and LOVE using them, especially when reef hunting bigger fish that require solid penetration. I have determined that the best gun really is "more than one" and instead of turning to the roller concept to reduce my quiver of guns and make a "do-it-all" gun isn't practical. Funny thing, using my rollers with great results and satisfaction have made me appreciate my banded guns more for where they exceed the performance of my rollers....the longer, bigger blue water guns. In either case, balancing band pull, shaft weight/diameter, shaft overhang, etc is more important than muzzle style.

Sorry to high-Jack this thread but it seemed like a great place on my first visit back to give a report on my last year's use of my converted rollers and my final assessment of both banded and roller guns. As far as this Speardiver muzzle....I WANT ONE! Well thought out kit to include band anchoring and reel bracket. Seriously, NICE WORK, As always, thanks for thinking beyond the obvious and keeping it affordable.

Big Mahalo Dan for producing a roller muzzle that actually looks like it was made as part of a production gun and not an after thought like the rest.

Aloha! Makoa

Ive used the HH X1 roller. (similar to speardiver) Its nicely made. Nylon sheaves, and majorly composite parts. Simple but effective.

It is a bit bulkier (wider) than the MVD, Mannysub, or aimrites (not much). But it accepts large diameter bands (3/4 inch). Making it perfect for a bluewater roller cannon, a bit bulky for a reef gun IMO.

Another fault in design is the wishbone elevator. It doesnt provide as much clearance as I would like, causing sharkfins (especially HH) to hit it if you load the band to the first sharkfin, no problem if band is loaded at the rear sharkfin. or if you are using a notched shaft.

I'm curious. What band stretch percentages have been used for the three anchor positions using 14mm smal ID?

Sorry for shooting this question here but.. What in the World is a roller gun? What are its advantages over regular S.G. Bands?

Thanks in advance

Quote from monster slayer

Sorry for shooting this question here but.. What in the World is a roller gun? What are its advantages over regular S.G. Bands?

Thanks in advance

:laughing: just back and stirring the pot big time!! :laughing::laughing: Glad to see you back big guy :thumbsup2:

Thanks bro. Right now rollers seem to be the bomb around here too

The roller vs regular bands discussion is like the bow/crossbow argument. Improved accuracy and power vs ease of loading and better manuverability..

Quote from monster slayer

The roller vs regular bands discussion is like the bow/crossbow argument. Improved accuracy and power vs ease of loading and better manuverability..

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