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Kenneth MacDowell | profile | all galleries >> My Paintball Markers >> Cockers, Cockers, Cockers, >> Paint-pinching Electro w/o eyes!! Uprising/Gemini project WGP 2k Vert Feed tree view | thumbnails | slideshow

Paint-pinching Electro w/o eyes!! Uprising/Gemini project WGP 2k Vert Feed

Try something different. Put an centerflag uprising electro frame on a Gemini kit. I read where UThomas said the 5way for the gemini kit was a bit long. so I decided to use the uprising kit I had laying around. And with the gemini kit I can set the bolt closing pressure and have an non-eye electro that will not chop, but pinch paint.

just have to tune the settings now.

review of the uprising kit found here:

Centerflag Products Uprising Autococker Gripframe
By Dale Ford
Oct 30, 2002, 21:37

The Uprising grip frame made by Centerflag Products made its' public debut at the 2001 International Open in prototype form, and the public reaction to it was extremely positive. The production models became available at World Cup 2001 and Centerflag sold quite a few right there at the event. I had an Uprising fitted to my custom Autococker at the 2002 Mardi Gras open.

Before I get into the specific review of the Uprising, I want to go into the specifics of the test gun. It started life as a 1999 STO Autococker, but Jeremy Garrett of Jackal Machine did some radical milling to the gun. In fact, it's the second gun that he ever milled, and it was later used as inspiration for the Jackal Machine Phase II guns. It has extensive body milling, including an overlapping back block. This is different than a P-Block, in that the body of the gun extends into the back block rather than being cut out to accommodate it. This makes for an overly large and relatively heavy back block, and it makes it sound quite a bit different than a standard Autococker. The gun features a Shocktech valve, phat hammer, springs and velocity adjuster. The front end comprises a Palmer ram, Mac Dev Sonic pneumatics regulator, and a Shocktech bomb 4 way. I use a Shocktech Supafly bolt in the gun, and a Centerflag Products inline regulator and Hyperflow model 201 air system feed it. I'd been using the gun for over a year when it was fitted with the Uprising, so I had a good baseline for performance from it.

The Uprising grip frame uses a single solenoid to actuate the double hardened sear, then a mechanical linkage to actuate the timing shaft, which is specific to the Uprising. The area that would normally go into the trigger plate on a mechanical 'cocker is significantly shorter to accommodate the spacing requirements of the Uprising. A single 9V battery powers it, and nominally it's good for 15,000-20,000 shots depending on the specific installation, and a player on Fusion has gotten over 50,000 shots per battery on his gun!

The day after I got my gun back I took it out and noticed a problem feeding the paint into the gun. I sent Tony Buttvick, the person who had installed the frame on my gun an email, and within an hour or so he sent me some new settings to input into the frame to allow for the somewhat lower quality of paint available locally to me. Using the supplied manual, I entered the new settings via the two buttons on the frame and gave it another go. The gun clacked along happily at 11bps. I filled the hopper and stepped outside to see how it'd work, and I noticed some failures to feed and a couple of chops, so I dropped the ROF down to 10bps and let fly again. My reward was a solid line of paint from the gun with no bobbles!

At the time the Uprising was fitted to my gun, they were limited to 13bps max, in semi only. New to the Uprising at this year's World Cup was a software update that allows for a maximum rate of fire of 17bps and the inclusion of burst and Hyper modes of fire. Also new at the World Cup was the ability to buy the Uprising 'over the counter' rather than having to send your gun to Centerflag's facility in Illinois. The main reason my gun is mechanically limited to 10bps is mainly due to the fact that it is a '99 spec gun, and there's the inertia of the overly large back block to contend with as well. It's been my observation with 2000+ spec guns that it's quite a bit easier for them to run at 13 bps due mainly to the smaller back block. There isn't nearly as much inertia to overcome with the 2000 spec guns. The guns that Centerflag sells already fitted with the frames are stock WGP Orracles, Black Magics and the like, with their own special versions being introduced earlier this year with their own milling and anodizing colors.

My gun made its' tournament debut at Skyball 2002, which I was there to report on rather than play. My friend Anne Kempa of the International Iron Maidens was playing with Manic Depression for this event, and she had asked previously to use my gun. She wasn't aware that I'd had the gun converted to electronic operation. Initially she was a little skeptical of the entire concept of an electronic Autococker, but after shooting my gun she was VERY impressed. She used it for several games and at the end of the event when I asked for it back, she told me that I wasn't getting it back. After a couple of hours of begging and pleading, she allowed me to have it back, but with the stipulation that she get to borrow it anytime she asked for it!

Over the course of this season my friends and I have put over 45,000 shots on the frame. This was done over the course of several tournaments; scenario games and weekend walk on play. With the exception of needing to change the back block 'dwell' after I got it, I have had zero problems with the frame. The gun itself has done rather well with the frame, but at the IAO 2002 I discovered that the jam nut had backed off of the valve, damaging the threads. Amazingly enough, with the help of a master machinist at my day job I was able to repair the threads in the body and reassemble the gun. I'd been told that since the frame allows the user to shoot the host gun at a much faster rate of fire than otherwise would be expected, that wear and tear on the donor gun becomes a bit more pronounced. Other than the 4 way on my gun being worn out now and in need of replacement, I haven't noticed any accelerated wear to speak of. The problem with the jam nut could have been avoided if I'd have used an aftermarket jam nut with a locking device on it rather than a stock part. If I were to do this review again, I'd buy a new WGP gun and have the Uprising fitted to the new gun, rather than having it fitted to my gun, which had already had over a year of heavy use on it.


Able to adjust with the two buttons on the frame, rather than needing a separate computer
Access to Centerflag's customer service
Readily available battery (9V)
Able to convert back to mechanical operation in the case of a catastrophic failure of the frame

Performance potential of the gripframe is only as good as the donor gun
Somewhat taller than a standard .45 gripframe
Lack of aftermarket grips available
I'd recommend an Uprising for anyone who wants the advantages of an Autococker with the speed of an electronic trigger. The Uprising's simple design makes it more reliable than other conversions available, and with the new enhanced software available from Centerflag now, the rate of fire is more than comparable than the other conversions available.

For more information on the Uprising, contact Dennis, Tony or Kris at Centerflag Products on (630) 553-2611 or on the web at

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2k1 vert feed with Uprising frame and Gemini kit
2k1 vert feed with Uprising frame and Gemini kit
2k1 vert feed with Uprising frame and Gemini kit
2k1 vert feed with Uprising frame and Gemini kit
Gemini front block kit by G-Force
Gemini front block kit by G-Force
Gemini front block kit by G-Force
Gemini front block kit by G-Force
Uprising Electronic frame by Centerflag
Uprising Electronic frame by Centerflag
Uprising Electronic frame by Centerflag
Uprising Electronic frame by Centerflag