Blackpoint Engineering JCS Gold Power Tube Reviews

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Number of Reviews: 4 Average Rating: 8.0 / 10 Manufacturer Website: Click here Suggested Retail Price: $49

Manufacturer Description Subscribe 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. Places to Buy No Stores Sponsored Links

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deluxestogie Saturday, June 25th, 2005 Period of Product Use: Less than a month 7 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 I found this review   0 Comments - Add Comment

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 month 1 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 I found this review   1 Comment - Add Comment

sirchunx Monday, December 12th, 2005 Period of Product Use: Less than a month 1 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 I found this review   1 Comment - Add Comment

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   0 Comments - Add Comment

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