"I bought this pistol as my first GBB and have been playing around with how much gas to put into the mag before heading out to the field. Last week I had my first chance to field it and it was going good until just after lunch. With less than 3 hours of use total(including testing time) the slide locked back. I had just refilled the mag at lunch so I knew I wasn't out of ammo yet. I pushed the slide-release down and the slide stayed back. I tried to push the slide forward and it slid back into it's normal resting location. I then proceeded to fire again on my enemies. It locked back after another shot and then I couldn't push it forward. Needless to say, I died after about 10 seconds of not having a weapon...
This said however I did fix it the day after the game. I am personally mechanically incline and have disassembled many things ranging from Airsoft guns to RC cars to real cars and have been able to put each back together from memory without issues. I would not recommend taking this pistol apart to someone who has trouble taking apart something simple as a Airsoft rifle. It's more complicated than a clear springer(which I am glad to be rid of) but it's almost on the level of an AEG Gearbox.
As I disassembled the pistol I noticed the screw that holds the Blow-back mechanism together had come a bit loose. Actually it was a lot loose... loose enough to fall out but the lower part of the gun was in the way so it couldn't undo it's self the final two turns. So, bad QC on this gun there(I tightened it up and will check it after a few more uses and I might decide to put something like lock-tight on it if it doesn't co-operate).
The problem was one of the two springs that are used in the gas blow-back mechanism had gotten caught in the sliding gap of the top slide and bottom frame of the gun. I was able to get he spring out and replace it with a ~relatively close~ ball-point pen spring. I did have the stretch the pen spring a bit because it was only about 60% of the length of the spring on the other side.
After I had fixed the problem, I had heard about doing small mods on GBB pistols like putting plumbers tape around the barrel and hop-up parts to keep gas from leaking out . I'm glad I checked this it the barrel wobbled a bit and the hop-up almost fell off it was so loose. BTW this pistol does not have an adjustable hop-up(I thought I had read these had it somewhere online, but this one has a fixed hop-up).
After wrapping the connection(and cleaning the barrel out spotlessly) I put the mech-box back together and the barrel didn't move at all side to side and it only moved a hair in and out. which was an improvement over the lots of movement in and out and a fair amount of play side to side.
I put everything back together and took it out back for a test-firing. It work just as good as new if not better, I might be imagining the "better" part of that statement, but it does shoot pretty strait, my backyard only goes to 60-70 feet ish, and I could hit a man sized target every-time at that range. It also might be me, but I think the gun seems louder than it used to be before. if it is louder it's only be about +20% or so.
In summery I would have to say that this gun was a bit of a let-down. If I die simply because my gun malfunctioned I am instantly in a rage toward the weapon. After fixing the pistol I can see this happening again in the future due to the construction of the pistol, but there might be some other mods that can be done to this pistol to stop it from happening. In short, if you can't work on your own stuff and can't fix it yourself, go get one of the $100 models as I am sure that there is better QCs out the and KJW now reminds me of how a clear plastic springer company would make a GBB pistol.
Hope someone out there finds this review useful in their decision to buying a new sidearm! Have a nice day!"