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pbReview.com / Blackpoint Engineering JCS Gold Power Tube / Blackpoint Engineering JCS Gold Power Tube / Blackpoint Engineering JCS Gold Power Tube / Blackpoint Engineering JCS Gold Power Tube / Blackpoint Engineering JCS Gold Power Tube

Blackpoint Engineering JCS Gold Power Tube Reviews

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Blackpoint Engineering JCS Gold Power Tube
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Number of Reviews: 6
Average Rating: 7.2 / 10
Manufacturer Website: Click here
Suggested Retail Price: $49

Manufacturer DescriptionSubscribe to Reviews on this Product - Edit this Product Listing
GOLD P/T Special NO F.V.A.
(No Front Velocity Adjuster)
Only for A-5 Markers
Not intended for new users. For users with custom marker setups. The GOLD P/T Special NO FVA. Constructed like #75155, but gold anodized. It DOES NOT HAVE a front velocity adjuster. If your marker is setup with the front velocity adjuster (F.V.A.) full open, this product is for you. THIS ITEM SHOULD NOT BE USED WITHOUT A VELOCITY CONTROLLING DEVICE INSTALLED ON THE MARKER, SUCH AS JCS #66148. Therefore, JCS does not recommend this item for new players. Instead, buy item 75155, which has velocity control.
Product Availability 
The Blackpoint Engineering JCS Gold Power Tube is older, so while it may be available used and in a few cases new, it is not commonly available anymore.
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deluxestogie Saturday, June 25th, 2005
Period of
Product Use:
Less than a month7 of 10 people found this review helpful.

Paintball
Experience:
6 months
Similar
Products Used:
Stock
Marker Setup: A-5, E-grip, JCS Duel Trigger, JCS front bolt, Phat XChamber, accumulator, anti-siphon on 20 oz. CO2, Flatline or 14" JJ Ceramic barrel, JCS Gold power tube.
Strengths: Aluminum
No FVA
Less turbulent gas flow from the ASA
Weaknesses: Requires RVA
A bit pricey
Should not be used with a Response Trigger.
Review: My A-5 internals were polished using Never Dull. I bought a fresh case of XBall Bronze. With a Flatline, CO2, E-grip, JCS Duel trigger, XChamber, anti-siphon bottle, and an accumulator, I emptied 3 hoppers in rapid succession using turbo mode as fast as I could walk the trigger with three fingers. Trigger bps rate was set a smidge under maximum. Since I didn't have access to a chrono, I can't verify the bps, but it was probably between 12 and 14. All the shots clustered in about 18" at 100 feet. Flat trajectory. No ball breaks. Very nice.

Of course, after dumping 3 (R-5) hoppers like that, the bottle was frozen and took about 40 minutes to thaw. Hmm. With all the hardware in-line, the gun did not freeze. But the XBall Bronze balls worked like a charm with the flatline.

What part did the JCS Gold power tube play? I can't say for sure. With the JCS Gold in place, it's the first time I experienced such consistent accuracy at such a sustained high rate of fire.

Since the JCS Gold has no provision for a front velocity adjuster (FVA), safe use requires an add-on RVA to control ball velocity. Without the irregularity of the FVA screw at the ASA intake, I must assume that gas flow is less turbulent. That turbulence is needed when using a Response Trigger (RT), since the turbulence enhances flow into the RT/cyclone banjo connector. While I haven't tried the JCS Gold with an RT, I suspect that it would reduce the flow to it. This is not an issue with the E-Grip.
Conclusion: For an A-5 with an E-Grip, and particularly when used with the new Equalizer board (that will uncap the firing rate), the smoother, more consistent gas flow of the JCS Gold may improve the reciprocation rate of the bolt during sustained high rates of fire. Is it worth the money? Maybe.
Rating:
9 out of 10
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chl2onic Tuesday, June 22nd, 2010
Period of
Product Use:
2 years2 of 2 people found this review helpful.

Paintball
Experience:
More than 5 years
Similar
Products Used:
Stock PT

Rufus Dawg Wicked PT and Bolt
Marker Setup: Tippmann a-5: Old school GTA E-Grip, stuck on 10 BPS, but fast enough for me, 8" Lapco BigShot, 8" Lapco Air cooled Shroud, JCS Gold PT and Hex front bolt, Homemade "fang" style double trigger (1/16th" Trigger pull), Spec Ops MP5 mag, Spec Ops a2 shorty grip, Spec Ops Flat Top rail, Fully TechT cyclone, Spec Ops Aluminum dogleg Stock, DOP Block adapter, PPS ring mount on the bottom of the grip, PPS Inline Stabilizer


Tippmann 98 Custom: Flatline, or 14" SP linear, JCS RVA, R/T with 1/8th lines, 12V Revvy w/ X-Board and vortex impeller.
Strengths: Makes your marker loud
durable aluminum
Stock parts fit well with it
More consistent
Weaknesses: Loud?
Requires a regulator, or a RVA
kinda spendy for sound upgrade
Review: You do not need an RVa to use this product, you can use it in with a secondary regulator to control velocity.

My Gold PT is accutally a Factory Second ( crappy annodizing on the INSIDE of the PT the reason) The only down side, is they notched it where the FVA woulv be (only part you see) so you can't sell it as a normal PT I have noticed

I bought this product for one main reason, because I wanted my a-5 as loud as possible so it intimidates people on the field. When I looked into Aluminum Power tubes I found two options back then (now you have more) the JCS Red Hot PT, and this one. I chose to go with the Gold Power Tube because already had a PPS Stabilizer to control my velocity, so I didn't want a FVA blocking the let stream of air leaving the valve. I absolutely love the sound signature my marker has.. It gets comments at big games, keeps heads down, it cracks more than pops, it almost sounds like a .22 caliber bird shot shell firing. I have a friend with a Red Hot PT, on his a-5, and he even tried my barrel on his marker, and mine was louder. It really makes him envy my marker.

I know a lot of people think a greater sound signature is a bad thing, but I love it it stops advancing people in their tracks, and I personally don't mind giving away my position because I love action, this thing makes people come from afar, but stay far enough away.

I made a note of it making my marker more consistent. I used this exclusively with a PPS reg, so I can't say the power tube made a noticeable difference on my markers consistency, but I can say I have an extremely consistent a-5, that ran 500 psi with a Super R/T and a cyclone running off of it. (Now use an e-grip, and don't have a gauge anymore).

Also Others said you can't use an R/T with this. I used the R/T with both HPA, and CO2 with both the 1/8th lines, and the 1/16 lines with success.
Conclusion: Overall GREAT Product, even for mine being a Factory 2nd!

With that being said, I wouldn't buy one brand new unless 1. my stock PT cracked and 2. I wanted a really loud marker. I say that because they are a quality product from an awesome company, but aftermarket bolts and power tubes, really don't effect preformance enough to warrant the purchase of them.

I am giving it a 10, because I personally love mine, but it may not be for everyone.
Rating:
10 out of 10
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BeerIsGoodForU Saturday, October 7th, 2006
The accuracy of this review is disputed. Please see discussion on the comments page.
Period of
Product Use:
Less than a month1 of 1 people found this review helpful.

Paintball
Experience:
6 months
Similar
Products Used:
Stock power tube
Marker Setup: A-5
E-grip
Drop forward
12' Tippmann werks barrel
vortex mod
Palmers QEV
Ricochet hopper
JCS dual trigger
JCS RVA
JCS Gold power tube
Strengths: Works well - no FVA to mess with
Weaknesses: Little pricey and the internals move a little on you - small leak
Review: I was having velocity problem and decided to go with the JCS Gold power tube and JCS RVA so that I could control velocity and not have to worry about the FVA. Today was the first day I used both the Gold power tube and RVA and they worked great together! The Gold power tube worked as advertised and some people commented that it looked cool to see the Gold tube where you normally see the FVA.

Only problem I had was that at first there was a small air leak between the power tube's o-ring and the tombstone. After hearing this small leak I dropped 4 to 5 drops of marker oil into the ASA and dry shot my marker ten or so times. This seemed to clear up the air leak. Time will tell.

I really could not tell a huge difference between the gold power tube and my stock. But, the gold power tube will definately stand up well over time and it worked well.
Conclusion: It is a good product, looks cool, comes from a great company.
The only downside is the small leak (but it went away), there is a little play with the internals in the power tube, and little pricey.

Overall, I am really happy with this product. When combined with the JCS RVA it is a perfect 10.
Rating:
8 out of 10
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sirchunx Monday, December 12th, 2005
Period of
Product Use:
Less than a month1 of 1 people found this review helpful.

Paintball
Experience:
3 years
Similar
Products Used:
standard bolt
Marker Setup: Tippmann A-5, E-Grip, Low Pressure system, Rufus dawg wicked bolt, basic drop forward, flatline, blah blah blah...
Strengths: Smoother pull back and shots, No need for FVA
Weaknesses: Slightly wider than the Rear Bolt O-Ring
Review: I installed the power tube along with the MadDawg wicked bolt. I had to dremmel down the front portion of the Power tube to fit the bolt. Not a problem though I wish Mad Dawg would have given me a heads up that I would need a modified power tube. But thats a different product. After initially installing the above I found the cocking to be much smoother and when the trigger was pulled it was a cleaner follow through. However once I cranked open my n2 tank I kept getting three round auto bursts (you know the sound when your tank is running out of air) which was followed by the gun uncocking itself. Originally I thought it was caused because I dremmeled the front of the power tube. However upon further inspection I realized that where the rear bolt's o-ring meets the power tube there was no friction. It appears the power tube was slightly larger than the rear bolt's o-ring.
Conclusion: Good idea, Bad follow through. Though the product seems like a good investment and promises such you will need to modify it a little. Unless mine was just a fluke. A solution for this A) JCS should redo there power tube to the correct size or B) I need to go buy a new thicker o ring to create that missing contact. I give it a 5 since it has yet to work but seems promising.
Rating:
5 out of 10
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I<3#46 Monday, September 14th, 2009
The accuracy of this review is disputed. Please see discussion on the comments page.
Period of
Product Use:
Only tested
Paintball
Experience:
3 years
Similar
Products Used:
Stock powertube
Marker Setup: A5
relevant parts are all stock
except for TechT zero kick hammer
Strengths: Metal
Weaknesses: Everything about it except for being metal
Review: I bought my Gold powertube straight from jcs' website and when I got it in the mail, I immediately saw that they drilled TWO holes next to each other for the cyclone/RT feed. So they obviously drilled it in the wrong place then redrilled it and still shipped it out. So now I get massive air loss since this is where the pressure is highest when firing. Also, the diameter on the inside is way to big. My chamber sits loose. This causes the air directed towards the front to escape from the two funnels and out the square cut in where the tombstone sticks in. So again, massive air loss.

So what happens is, with my velocity set to the max, i can barely break 230 fps but most of the time there isn't enough back pressure to kick the hammer back far enough to reset. So it does what it does when you run out of gas ... excpet it just keeps going, sometimes making the cyclone feed but then chops the ball.

I heard other people also had issues with it because of dimension error and others give it 10/10. So they are obviously very inconsistant with their manufacturing and I wouldn't waste my time with any of their products. Especially since they boast a 100% material and manufacturing defect free guarentee and still shipped my product out with a VERY obvious manufacturing mistake.
Conclusion: if you want to waste air, money and only want to hit 230fps and turn your A5 into a ball eating shreddar... THIS IS THE ITEM FOR YOU!
Rating:
1 out of 10Last edited on Monday, September 14th, 2009 at 11:56 am PST
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Daemon512 Monday, April 16th, 2007
Period of
Product Use:
3 months
Paintball
Experience:
3 years
Similar
Products Used:
Stock A-5 powertube
Marker Setup: A-5 with polished internals
Sniper Stock
Gold Powertube
Lapco Autospirit
Teflon Front Bolt
Double Trigger (not for speedball, for a different trigger pull)
stock hopper /50 and 20 round hoppers
Compressed air
Strengths: More Consistent
Loud
Weaknesses: Loud
No velocity changer

**NOT SAFE WITHOUT VELOCITY ADJUSTER **

Review: My consistancy is now nearly +/-5 FPS (I do not recall what it was before using this product, I will find out and post).

This product will make your marker LOUD. Both my friend and I have a Twister barrel by Empire (rifled, thick, and ported heavily) that makes the paintball gun VERY quiet (when my friend shoots, it makes an s sound that is easily overtaken by yelling). Using the same barrel with this product, my gun sounded almost as loud as it does with my friend taking off his barrel.

I do like and will continue to use this product. Without a velocity adjuster, I suggest getting a rear velocity adjuster or (preferably) a regulator first. If you use a rear velocity adjuster, you do not have a stock (unless they make stocks with them), and without a stock you can not shoot as accurate as +/-5 FPS will allow you to, so I greatly suggest using the regulator instead.

My A-5 shoots around 312 FPS with it and no adjuster. This is an unsafe level to have a paintball marker during play. Always use a chronograph and a safe fps level before play. Do not use this product without some kind of velocity adjuster.
Conclusion: I would suggest anyone who wishes to be more accurate in a sniping kind of way to get this product, but be sure you have a way to adjust the velocity first. I greatly advocate safety in this sport, so I will say it again...

**THIS PRODUCT IS NOT SAFE WITHOUT A VELOCITY ADJUSTER!**
Rating:
10 out of 10
I found this review  
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