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Old 02-01-2013, 01:46 PM   #11 (permalink)
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I wonder how they've solved the unbalanced drag in the lower tube on the lower tube "valve" while it is moving forward and back. This would be caused by the additional drag of having the bolt pin insert downwards into the lower tube. Basically the lower valve tube is pulling the upper bolt along for the ride.
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Old 02-01-2013, 01:55 PM   #12 (permalink)
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Originally Posted by The Inflicted View Post
Now wait a second... the guns in the rendered schematic image and the black outline are two different markers, are they not?

A little yeah. Could be two different designs they were working on at one time. Things can change as you go through the process of development.
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Old 02-01-2013, 02:01 PM   #13 (permalink)
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Quick! Someone add a spring so it's a stacked tube, spool valve, fasor, poppited, chainsaw, whatzits!!!
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Old 02-01-2013, 02:09 PM   #14 (permalink)
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I kind of wonder why nobody thought of this before, seems like a great idea.
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Old 02-01-2013, 02:28 PM   #15 (permalink)
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Originally Posted by The Inflicted View Post
Out of hand...heh.

You dislike the ergonomics?
I never liked the crested-rainbow-swooping front grip. Idk, it's always looked strange to me. I like the straight up and down of the ego reg and the like. Guess that's just me.

And yeah it does look a lot like a creed
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Old 02-01-2013, 02:33 PM   #16 (permalink)
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It's nothing new, the shoebox shockers were stacked tube spools. The only difference is how they move the bolt. The shockers just put the bolt actuation right behind the bolt rather than below. They looked significantly different because the packaging was not nearly as optimized...but the basics were there. Bolt up top, spool below/side (my PVI was to the side).

The packaging has been shuffled a little...but the idea of using a spool dump chamber and independent bolt actuation has been around for a while. Efficiency should be on par with any other spool gun (ie not as good).

I think the old Nova's worked this way (distinct bolt & dump chamber controls), maybe there are more yet that I'm missing.
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Old 02-01-2013, 02:41 PM   #17 (permalink)
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Originally Posted by Sterling500 View Post
Efficiency should be on par with any other spool gun (ie not as good).
Bingo. The difference seems to be how the air is routed, but it's still a spool, so it'll have the same limitations. Of course, we could wrong, but it looks like the draw will be ergonomics more than anything else. Like spools, but also prefer stacked tubes? This is for you.
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Old 02-01-2013, 02:58 PM   #18 (permalink)
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Pre-FAQ (since really, who asks questions about a gun they don’t know existed?)

Barrel Threads?
Autococker ‘Quick’ threaded

Feedneck type?
Solid Mount to KEE ‘Sniper’ specs, with cam lock tightener

Bolt style?
Standard stacked tube pull pin style, with an Exalt bolt tip. This places the ball perfect in the stack for loading purposes, and works really well with our detent system

Ball detent?
We have a specific to J4 ball detent that is soft and durable while being very low profile. It is a dual detent style.

Toolless Breakdown?
For the spool and bolt, yes. To take off the grips you still need an allen wrench, but every contact point that will need oil, and every movement o-ring you can access in a few seconds.

Hoseless gun?
Yes. Bottom mount ASA reg with cam on/off.

Can I put on an upgraded reg?
Not at this time. The reg recharges for easy 20+bps cycling, and looks good on there, so it isn’t as important as it used to be.

Firing Modes?
We are finalizing that, but Semi, PSP, NPPL, Ramping and a few others will be standard.

Dwell Adjustment?
This marker is Auto-timed, partially because the valve design is self-controlling, mechanically. A long dwell doesn’t produce any more velocity (fps) then a short one. The dwell is adjusted with a Hall Effect sensor that notes the position of the bolt and times the marker accordingly, only to make sure the cycle has been completed before returning the bolt.

What adjustments will there be then?
There will be 3 settings for bolt pressure, including one being a ‘Soldier On’ setting that allows the marker to shoot in all conditions; freezing cold, gooped with paint, full of rain. Due to the internals, there is no effect on velocity by having a longer dwell, so in conjunction with the HE sensor there will not be a FSDO issue. This is not a finicky system, but very robust and capable. Set to ‘Soldier On’ you should be able to shoot through any bad paint, nasty back of the field situation in any weather and still get a ball out with enough velocity to do some damage. Set to ‘Delicate’ the gun should stop on most paintballs, and ‘Normal’ should set you up for regular everyday play.

What type of eyes?
Break beam, with a removable second board so you can change out with a color you might prefer.

Trigger type/style?
Right now a blade type trigger is being included. We will finalize a layout by the time we ship, but at the moment it could be interchangeable with a LUXE or similar.

The trigger switch then?
We have a leaf switch on the board

Battery?
Initially on the standard version we will have an LED board and 9V, the upper level design will have an OLED with a Li-po battery, with nearly 100,000 shots possible. All parts will be upgradable between the two platforms.

Operating pressure?
125-150psi, though it can be ran higher for extreme ROF – using a de-volumizer in the system. The solenoid is good for 200+psi

How many shots on [insert tank here]?
Right now we are working on tweaking the internals a bit, but 1600-1800 on a standard 68/4500 with a not quite full fill is easy, with the possibility of it being higher with a few adjustments, and actually trying to run a tighter bore barrel. That is average, loose barrel, average paint, consistent performance.

How loud is it?
It is actually quite quiet from our testing, 2 decibels lower than comparable spools with the same barrel, and even more so than most poppets.

How Smooth is it?
That is arbitrary – but from the comments from other testers most say it shoots like a LUXE, in fact we hear that so often, about 10:1 compared to every other gun combined (which is high praise) that we don’t think any other better description. I would say it isn’t as smooth as a DM, you still have enough feedback to feel that you did something.

How much will it cost??
Right now we are not releasing MSRP, but we hope to make is available for less than $2000. (Much less. That is a joke. Just making sure you know that. We will announce the price point at a later date.)

Can I order one now!?!
Just wait a few weeks and we will be able to take pre-orders and start connecting with stores for orders. We be ready for orders at the beginning of March, with expected delivery of the final gun at the end of March/Early April (pending order size, market demand)

I am a store and I want to be connected to your distribution list!
Email us at josh@j4pb.com and tony@j4pb.com and then in March, sales@j4pb.com
We will be offering a MAP agreement.
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Old 02-01-2013, 03:07 PM   #19 (permalink)
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Quote:
Originally Posted by The Inflicted View Post
Now wait a second... the guns in the rendered schematic image and the black outline are two different markers, are they not?
According to their facebook page, the render of the internals is an old body style while the internas are identical.

Pretty cool stuff. I personally think it's taking negatives of each gun(harshness of a poppet, with the maintenance of a spool). We will see.
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Old 02-01-2013, 03:07 PM   #20 (permalink)
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What's J4 Paintball?

Is this going to be like the Regency Chrome, where a new start-up wants to be a boutique shop and charges a fortune for an unproven design?
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