REVIEW Cyma CM.045 AKS74U Plum version

Posted: lunes, 25 de marzo de 2013 by Termita in Etiquetas: , , , ,
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.pdf [https://docs.google.com/file/d/0B-Nj6Uk4DuEUS0UtOExCYVp1Z0k/edit?usp=sharing]



... y este video muestra el desmontaje del hopup y el cañón




{Table of Contents}:
Real Steel History
Airsoft History
First impressions
Pictures
Quality
     Externals
     Internals
Discrepancies
Pros/Cons
final thoughts
Real steel history-

 The AK-74 (Kalashnikov Automatic Rifle, Model 1974 (Russian: Автомат Калашникова образца 1974 года) is a 5.45mm assault rifle developed in the early 1970s in the Soviet Union by Mikhail Kalashnikov. It was developed from the earlier AKM (itself a refinement of the AK-47) and introduced in 1974. The rifle first saw service with Soviet forces engaged in the Afghanistan conflict. Presently, the rifle is used by the majority of countries of the former USSR. Additionally, unlicensed copies were produced in Bulgaria (AK-74 and AKS-74U), China (Type 88), the former East Germany (MPi-AK-74N, MPi-AKS-74N, MPi-AKS-74NK) and Romania (PA md. 86).

 The AK-74 is an adaptation of the 7.62mm AKM assault rifle and features several important design improvements. These modifications were primarily the result of converting the rifle to the intermediate-caliber 5.45x39mm cartridge, in fact, some early models are reported to have been converted AKMs, with the barrel resleeved to 5.45x39mm. The result is a more accurate and reliable rifle than the AKM. The AK-74 and AKM share an approximate 50% parts commonality (interchangeable are most often pins, springs and screws).

 Operating mechanism
The rifle’s operation during firing and reloading is identical to that of the AKM. After ignition of the cartridge primer and propellant, rapidly expanding exhaust gases are diverted into the gas cylinder above the barrel through a vent near the muzzle. The build-up of gases inside the gas cylinder drives the long-stroke piston and bolt carrier rearward and a cam guide machined into the underside of the bolt carrier rotates the bolt approximately 35° and unlocks it from the barrel extension via a camming pin on the bolt. The moving assembly has about 5.5 mm (0.2 in) of free travel which creates a delay between the initial recoil impulse of the piston and the bolt unlocking sequence, allowing gas pressures to drop to a safe level before the seal between the chamber and the bolt is broken. Like previous Kalashnikov-pattern rifles, the AK-74 does not have a gas valve; excess gases are ventilated through a series of radial ports in the gas cylinder. Since the Kalashnikov operating system offers no primary extraction upon bolt rotation, the AK-74 bolt has a larger extractor claw than the 7.62mm AKM for increased extraction reliability. Other minor modifications were made to the bolt and carrier assembly.

 - wikipedia 10/5/09 all rights reserved
Airsoft history-

 It used to be that when you wanted a good aks74u replica you NEEDED to get the VFC, and maybe for some people with a budget the Dboys was the way to go. well fear no more, if you need one or just plain want one, then turn your head here and take a look at this bad boy. the new Cyma Cm.045B aks74u is something to contend with the $360-400 price tag on the VFC. this gun is no where near the quality of the VFC, its much better. the internals, externals, and feel are just superior when compared to the VFC. this gun has the quality and feel to get the job done ten fold on the battle field. 
First impressions-

 well first off i'll start with where i bought it, which was at the best CQB field in the PNW and that is Tacoma tactical. i bought it for $160, which was about the same as it would've been shipped from weaponblender. i bought 2 extra mags and the total was about $205 for all of it after tax. now when i took it out of the box i was very surprised how hefty and little it was at the same time. it weighs about 8 lbs with out a battery and 9 with the battery and a full mag. it came with an 8.4v 1400mah battery, a crappy charger, a cleaning rod, 1 mag and the gun itself. it has great looking externals. and before i even fired the gun i had to open it up to put a m85 spring it so i could use it for cqb right away, and man was i blown away by how nice the internals were, but I'll get into that later. this gun looked like a great investment so far and i was very happy with my purchase. i wanna give a special thanks to Jason Daniels at TacTac for giving me a discount from the original $170 price tag to the $160 i was charged...

Quality-

 Externals-

 The externals on this gun are great, and they make the gun look and feel phenomenal. the whole body is damn good quality steel and you can tell. the polymer grips are both very good quality and feel great to hold and give you a feeling that you are holding a real gun. from about 5 feet away there would be no way to tell if it was real or not! but don't let the price of $140-170 fool into thinking that it must be cheaply made and low quality, because if you do then you will regret it when you see mine...

 Internals-

 the internals on this gun are what intrigued me the most. the gun has been basically redesigned from the motor housing up the the gearbox retainer on top. it has redesigned 7mm bushing the the oil grooves cut in a different spots than a standard oil grooved bushing for better lubrication of the gear shafts. the gearbox has many more reinforcing spots on it than most and the gearbox has a feel to it like I've never felt on a GB, i can't really describe it. but it does feel stronger and much beefier than a standard ver3 gearbox. the wiring harness is very nice and may last for a long while, only time will tell. the piston/head are decent quality I've put in a deep fire piston and JG ballbearinged head on since I've bought it. and the gears are extremely high quality and look very well made, not like the previous "NZ" brand Cyma puts in there previous models. the best part about this gun IMO is the stock 6.032mm tightbore barrel, it gives great accuracy and groupings, and the metal hopup chamber is a great plus! the motor is basically a systema magnum, it'll definetly pull most springs with ease(pulled an m140 with an 8.4v 1400mah battery). the only upgrades I've installed since i bought it 2 days ago are the deep fire piston and jg head, and a G&P bucking and G&G air nozzle w/ o-ring. so basically this gun is an awesome buy if you want great internals for a cheap price!









Discrepancies-

 i don't really have any discrepancies with this gun, but the fact that the handgrip wobbles just a little bit. thats about all, but time will tell if i find more. i'll update this if i find more...

 PRO'S-

 great internals
good price
awsome look and feel
600 round mag
great range for a small gun
its an ak, so it'll last
everything about this gun is a Pro

 Con-

 Semi wobbly handgrip....

 Final thoughts-[/b

 Basically if you want a Ak74su, get this one. its a very good gun for the price and Cyma has a Wood handgripped model too. it shoots far fast and straight. so its perfect for me. it also has the size to make you happy about carrying it.. not like an m16 or ak47. and you can never go wrong with a gun this high quality for $160!!

 thanks for reading my review guys it took awhile and i'm very happy with this gun.. please don't be afraid to ask any questions! i will add more stuff as i get it done!




 fuente: †Höllen† tacoma airsoft

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