KWC IMI Co2 Mini UZI

KWC/CYBER GUN Co2 Mini Uzi

Name: Cyber Gun (KWC) IMI MINI UZI (export version)
FPS: 350-380 fps (.20 & Co2) at around 70 F (indoors)
RPM: ~700
Hop-up: Yes, Adjustable
Range: ~75-100ft
Power Source: CO2 or Green Gas (upgrade needed)
Average Price: $165 From the US + shipping.

Intro: I ordered this baby off of Ebay for $140 with shipped and two magazines. Upon arrival the thing reeked of smoke, the guy was obviously a smoker. And the packing was nothing more than a plastic bag full of peanuts. However the gun appeared un-damage and the internals were like new. This was not fired much for being used.
This is the Cyber Gun or the Export version. The difference between the Export and the original version is the power and gas efficiency. The export gets a lot more shots per magazine than the original. Also the power is also much lower to make it more ‘playable’.

Appearance
This gun is a peach! The externals are pretty much plastic although is advertised as “Full Metal” almost everywhere. The only large metal piece is the top cover, folding stock, and outer barrel. However the plastic is very strong and the paint finish is excellent. Seams are pretty much not even existing. Aside from ‘full metal’ this is defiantly the next best thing.

Stock: The fold stock is a sturdy piece of metal. When fully folded out there is little or no wobble, and there is just a little when folded in. Under the hinge there is the first sling loop, which is very tiny and you probably going to have to add some rings (like I did) in order to get anything to fit on them. However on a brighter note the sling loops are swivel.

Receiver: Moving onto the receiver the first thing you may notice is the trademarks. These are ‘real’ replicated UZI trades! However they are simply etched into the body, so they are pretty hard to see. If you have a steady hand you could probably apply some white paint or white out to make them a little clearer. Right below those trades you have the normal Air soft trades. These are in a good spot because they are not noticeable when you’re using the gun.

The hand grip is alright. The plastic seems to be different than the rest of the gun, a bit cheaper. The magazine switch is springy and well built no problems there. You also have the second safety button on the back of the hand grip. This actually acts as a safety, and you have to hold it down in order to fire. This is the same as the Real Steel, and I personally don’t even notice it’s there when I use it.
The selector switch is metal and has just the smallest amount of play in it. It has three selections. “S” for safety, “R” for semi, and “A” for full auto. When I first had the gun the like to vibrate the selector switch from Auto to semi, but now the problem is almost no existent.
The plastic trigger guard is where the seams are most visible. However it’s pretty solid and it does the job. The trigger is metal and is, well, a trigger. No bad points on it and no good points.

The main receiver, as I said before, is plastic. However I can’t stress enough how good the plastic is. It fools me into thinking its metal all the time. Extremely sturdy and will hold up absolutely fine to anything you might throw at it. The pins holding the lower part (hand grip, trigger, and etc) are metal of course.
The top cover is a metal. I’ve opened and slammed it shut so many times with little wear, so I assume it’s safe to say it’s going the hold up fine. The cocking handle has a noticeable wobble even when everything is tight. It’s an annoyance but I can live with it.
Front site is plastic as well. Solid with no moment. It has the mount on which you can mount the RIS rail made for the WA UZI.

Sites: The sites themselves are made with metal. The ‘walls’ are made of plastic. It uses a flip site. Supposedly with two different sized holes for different degrees of accuracy. Personally I see little or no difference in the bore sizes. The rear site can be adjusted with a screw driver for right and left adjustments. The front you need a special included include tool to adjust the up and down moment. In reality, you never really use the sights with this thing.

Magazines: These things are quite heavy. 1-2+ Lbs, this is due to their full metal construction. Everything is metal except the feeding lip. I’ve dropped these things millions of time, never anything problems. These things hold about 48 rounds in a double stack, so load carefully. Co2 is loaded on the bottom by on screwing the metal nut, inserting Co2 cartridge, and tighten the nut until the cartridge is punctured. This is very tedious process considering you have to do this quite often. An alternative is the Green Gas valve replacement (KW058), which can be acquired directly from KWC for $10 plus shipping from Taiwan. It’s a five minute conversion. Here is a great tutorial, http://www.youtube.c...h?v=7ZOLmi9vO3M. However this gives you even worse efficiency, however it’s incredibly easier to refill the gas in you magazines. You can always switch between the two (Co2 and GG). I have one magazine for Co2 and one for GG.

Left GG Magazine, Right Co2

Performance
This is the guns biggest plus and biggest down fall. Shooting is fun but the efficiency is not. The stock performance is really only good for CQB. Has the ROF of about 700 RPM.

Preparing to fire: After loading the magazine with Co2 and BBs (described in the ‘Magazine’ Section) it’s as easy as inserting in the gun and cocking. The gun has to be cocked before it can fire, +1 for realism. It also stops firing after all of the 48 rounds are gone.

Firing experience: This gun defiantly kicks. Some people say as much as a .22LR, and I’m going to say its pretty close. It’s thee funniest airsoft gun I’ve ever fired. Also the sound which it produces is enough to make people freak out, especially in CQB environments. The actions are also very realistic and the cocking is very intimating.

Power: The power is about 380fps of Co2, probably a little over 300fps on Green Gas, a good amount of power, not to much and not too litte.

Efficiency: Oh dear, this is worst part. You’ve probably heard about the bad efficiency on this gun. The Export version will get about 2-2 Â½ magazines on Co2. That is shooting in 3-4 round burst with a 1 sec pause between bursts. On Green Gas I get around 1 magazine on bursts, however it is far quicker (and cheaper) to reload with Green Gas. On semi (not rapid fire) only, it’ll get about 3-3 Â½ magazines on Co2. Keep in mind that this is in warm weather 70+ degrees F. Co2 will work fairly well in colder weather, but Green gas will not. A full auto rampages will drain your gas within a Â½ of a magazine.
The problem is the mass ‘cool down’ on the magazines. If you keep the magazines warm you will maximize your efficiency. Long periods of full auto cool the magazine so much that the gas doesn’t expand as much as it can. There really isn’t any fix to this besides keep the magazines warm before and during shooting, also keeping the inside well cleaned and maintained. In the older versions (non-export) you’d be lucky to get 1 Â½ magazine with bursts. KWC fixed this with a redesigned piston. This can be acquired from KWC or you can use a shooters design 1911 piston. I used both and both have the same performance. I switched back to KWC’s design because the SD one kept coming loose.

Range/accuracy: This are both limited. Because the UZI has a shorter barrel than an Mp7 and a poorly designed hop-up. The hop-up is adjusted by turning the barrel cap to either side. This pushes on a bar on the inside which in turns pushes down on the hop-up nub. Even when turned all the way up I was experiencing limited results. For a home made fix I stuck a wadded piece of paper inside the barrel cap, so that there was more hop-up added. Even still the range is not good for anything but CQB. I was getting the maximum range to about 75-100ft.
The accuracy like the range is limited. Be lucky to hit anything (aiming) within 30-45ft. Once again this is due to the hop-up and short large bore barrel. The only thing to help this in stock form is heavier BBs.
However never fear! After taking apart the barrel, I concluded that there is a high likelihood that an AEG barrel would fit. Also the hop-up bucking seems to be very similar to 1911 designs, most notability the WE replacement. If a Tight bore barrel was put in here, and a new bucking it would increase the range and accuracy immensely. It may even help the efficiency a little (maybe).

Problems: Like all guns I’ve had problems. First was that the screws that hold the recoil bar in front of the piston came loose and no longer screwed in. I could not find replacement screws that would work. I finally used grub screws (I can’t remember the size). However these have a problem of not hold in very tight, and I’m still looking for a more permanent solution, although the grub screws hold up fine, and the gun shoots normal with them in, I want something that will hold it down tightly, super glue may be an option.
Second I had the hammer (Part num. Z08) snap in half on me. Very odd, because it was a metal (probably pot metal). Its the part that actually delivers the blow back. That was no problem, because I acquired a new one from KWC for $6 plus shipping.

Piece where screws went weird (Taken from Firebrand (arnies))

Broken Hammer

Internals/dissembling: Internals are very sturdy. Either metal or sturdy metal, and KWC has every replacement part available so if some thing does break, you have a way to buy replacement parts.
As for dissembling, I could write a guide, but I’ll give a like to a very good You Tube link of some one else doing it. http://www.youtube.com/watch?v=w_De9ogqdTM...feature=related

off of KWC's web site

Upgrades: Externally your limited to the WA silencer or RIS rail. Unless you can come up with some home made upgrades.
Internally, you can’t do that much either besides replace parts and a new piston head. Yesterday I finally figured out how to take apart the trigger mechanism and took out the barrel and hop-up. The barrel is a standard GBB barrel. It is ~170mm long. Good luck getting a GBB type barrel to that size. I have however emailed Dees Customs to see if they can help me. I get back when I get a response. The hop-up is also a standard GBB type. So that probably is easily replaced. Once again any of the other parts are replaceable by KWC.

Conclusion: This gun is blast, and is my favorite out of all the guns I’ve owned. It’s got awesome recoil, decent power, good looks, and realistic actions. However it suffers in the performance area. Parts are easily available and upgrades can no doubt be done on the hop-up and barrel if you set your mind to it. It’s very well suited for CQB, but will need quite a lot of work for a woodland primary or secondary.

Appearance/built: **** Plenty of metal and the plastic is amazing. However I would have liked to see a full metal version and there are some minor wobbles and annoyances (hey, no gun is perfect).
Internals/Maintaining: **** Very well built insides, however broken pieces and loose/easily stripping screws leave a bad taste in my mouth. However replacement parts are easily available. Maintaining is a piece of cake and very easy to disassemble.
Performance: *** Power is decent but the hop-up and barrel are not, thus the range and accuracy suffer.
Upgrades: ***1/2 WA silencer and RIS will work with this, but other than that external upgrades are limited. Performance wise you can get, better piston head, GG valve, and possibly hop up bucking and TB barrel
Over all Value: ***2/3 I love the gun so I can’t give it 3 stars. It’s fun to shoot and good in CQB. It has realistic actions and is fun to just hold (