Double Tube Blowforward

[Vegeta]

I was wondering why AGD hasn't devo'ed a double tube blowforward. It would be simple. The regulator could go on bottom, along with the on off valve, then the bolt and air chamber on top. Now htere could be some porblems with how to get the sear/bolt problem worked out.. where it would be, or a solinoid could be used, and it would be an electro. My point of all this is.. it owuld cut hte size of mags nearly in half of their already small bodies. Speedball players would go crazy for a 5 1/2 inch long gun with the performance of a mag.

[Minimag4me]

it seems like it would work but it would be a ton of work to make one of the already small paintball markers smaller, mags are one of the smallest ive seen, i dont like stacked tube design also

[Drew]

if it aint broke, don't fix it

besides, if I wanted a double stack I'd go to I-hop or buy a spyder NOT!

[Vegeta]

Tom.. what do you have to say on this? Has AGD's R&D tried it? If so.. what were the results? Im wanting to know how it went before I go and try to build one.

[MajorDamage]

Itd be shorter but taller, now why would you want the body smaller than the triggerframe? The mag is short enough already becuase it is just long enough for a triggerframe and foregrip, but making it taller would result in more gun hits.

ENDO!

[FooTemps]

I don't really favor the double stack design. It doesn't really bother me if it's taller because at most of the fields I go to they don't count gun hits. Double stack just seems heavier to me...

[MajorDamage]

Don't count gun hits? Do you mean like "backyard ball"?

ENDO!

[FooTemps]

Originally posted by MajorDamage
Don't count gun hits? Do you mean like "backyard ball"?

ENDO!

No, these are real fields and they don't count gun hits. Weird huh?

[MajorDamage]

Hmm very weird! If they didnt count mask hits either then Id almost never be out!

ENDO!

[Vegeta]

if you had a double tube, there would be some empty space in the bottom tube becuase of the already small design. This space could accomodate electronics, a built in expansion chamber to go along with the reg, a low pressure chamber, etc. And it makes your gun an inch taller, yet 3 inches shorter. It would be very cosy in bunkers. Im talkign a 4 1/2 - 5 inch gun length.

[Minimag4me]

do u mean a 5 inch gun in total with barrel because that would have no efficiency and probably couldnt get a ball to 300 fps without breaking it. IF thats what you mean it would be a 2 inch gun with a 3 inch barrel. If you mean without a barrel the mag is already a 5 inch gun so it would be a lot of unneeded trouble for a stacked tube. The mag was designed as a single tube. A better choice would be to get a cocker or other stacked tube and shorten that a whole bunch.

[Vegeta]

Wihout barrel. and it would be about 4 1/4 - 4 1/2 inches.. which is a few iches shorter than a mag. Take a look at your hand. Spread your index and thumb on one hand as far apart as you can get them. Your gun owuld be smaller than that. If it were me, i would put a 14 inch barrel on it.. thats a barrel 3 times longer than yor gun... i kinda liek hte idea.. short guns with barrels way longer than the gun look cool- as long as they are efficient. in my case.

TOM WHERE ARE YOU?!
I wanna know if you have tried this b4.

[CHK6]

Yucky

Not to state the obvious but how would you deal with indirection flow? The mags inline design is perfect-du-mundo. If I remember correctly the more angles fluid motion has to change the higher the pressure has to be or slower re-charging rates.

By making a tube-topper what are you really gaining? You take from the front and put on the top. The overall area is the same and the flow is no longer inline. Might as well be a blow back with a two part regulator/valve chamber. [Not to be reducing your idea down to a Spyder level.] Though you could hack up a tube-topper and make a protoype.

Anyways having a 4" gun with a 14" nose isn't speedball friendly.

[Vegeta]

it would be almost an inline flow. hte path would be as follows- Up through vert adapter, into regulator (bottom tube) out reg into On/off valve, up out the top of hte on off to the chamber, then out hte bolt. the only big turn is where the valve is, which theres a bend there on regular mags anyhow. the otehr bend is in the chamber, but thats an open area, so it wouldnt cost u any recharge time.

[Minimag4me]

i just measured my mag and from the reg to the powerfeed it is like 5.5 inches(part of the barrel is in the mainbody so it isnt really like 8 inches) you wouldnt be gaining too much.