none, unless you want to count a spyder electro... which I don't
[B]2003 SysX Vengeance Pro 2.0[/B]
[I]Black to Clear Dust[/I]
Empire Barrel Kit
SysX 68/4500 HPA
APB Delrin JAM Bolt
Clamping Low Rise
12V Revy w/X-Board[/I]
Made in U.S.A.
I have had my Xonik since the World Cup, so far it has been awesome. I had it installed by the SysX techs at the World Cup so I cannot comment on how hard or easy it was to install. I dropped off my gun, then 4 hours later picked it up.
The available features and adjustments on this frame are outstanding. With the V1.7 software you can even choose a [i]full auto[/i] mode.
The Xonik comes with an electronic eye, making chops a bad memory. and the new Eye cover is very nice.
Optical trigger technology allows for a trigger pull lighter than a mouse click and ridiculously short.
Trigger can also be set up in a couple different semi modes.
Classic, where the gun fires and the block stays back until the trigger is released
This is nice for those of you who want that "Classic Cocker" feel, when shooting.
Semi, where the gun completes the entire firing cycle upon the pull of the trigger.
Which allows you to pull some pretty amazing ROF
Rate of Fire: The Full Auto mode is capped at 14 bps. I don't know exactly how fast the semi mode is capable of reaching. I do know that i was able to outshoot my 12v Revy last weekend.
Construction: The Xonik is solidly made. All metal frame with a comfortable grip. The grip is large, which is fine for me but may be uncomfortable for players with smaller hands.
Price: I was able to get mine for $340, but they normally sell for more. They still cost less than a Worr Blade or E-blade. but man, 300+ dollars is an awful lot to pay for an upgrade. But if you really want to throw paint, yet keep the closed bolt performance. This is your best option.
Overall, the Xonik frame is extremely well made. A bit pricey, but still the best value in the industry. The fact that it is American made, is nice as well. Of course if you are not an American i guess that could be a negative.
I hesitate to rate anything a ten, especially since I have not used it for an extended period yet. But, since it is the best value and it has performed flawlessly for me so far. I am going to give it a ten. If future experiences warrant a change I will be back.