"I have always liked the AUG, which set the standard for the combat rifle of the 21st century! The Bullpup design: Short and compact, while still maintaining a full M16 length barrel. Plus, it is very easy to field strip the gun. Steyr designed this to be deployed in multiple areas of combat, and applies to this gun as well! The airsoft version of this weapon is hard to distinguish from the real thing; every detail is right there, even the barrel changing system! I bought this gun about a year ago, and I have fired 25,000+ rounds through this gun alone. It never jams, and has a nice rate of fire. *I recommend Goldenball Proslick 0.23G BBs with this gun to maximize the range and accuracy, while still maintaining an FPS rating close to the stock specifications.
I have noticed very few issues with this gun, but the most annoying problem is the inner gearbox plate. *Beware: if the screws get bumped too hard, they will eventually get broken off of the inner body, letting the gearbox move around and away from the hop up and barrel. *This is an issue with all of the AUG A.E.G. models, so don't think you can escape this by buying an A3 or Military version of this rifle. It will happen eventually, since the plastic is very brittle around the screws of the plate.* I have never dropped my gun, and I take very good care of it, but this still happened to me. The gearbox is basically floating behind the plastic plate behind the battery compartment. If the plate is not secured properly, the result is extremely low FPS and no range, since the barrel/Hop up area is not making good contact with the air nozzle in the gearbox. This is not very hard to fix, if you know how to reattach the plate. I bolted a piece of metal on the inside to hold the plate in place. Since then, I have had no trouble whatsoever shooting this gun.
Unless you saw away part of the gearbox plate, it is not possible to fit a large battery in the gun (This may be a con for some). For general purpose, a mini type 8.4v 1600 mAh is really all one needs anyways (Roughly 1 BB per 1 mAh for those who are not familiar with the output, so roughly 1600 rounds per one 1600 mAh mini battery).
Something else which a few other reviews have noticed is the wobbly fore grip. This is just annoying at times, but hardly noticeable during combat. I took a piece of hard foam and fit it to a notch between the barrel and the upper receiver and it made the fit more sturdy. It can't be fixed entirely, and even occurs on the real AUG. The folding fore grip just has it's tendencies...
Range and Accuracy are decent out of the box, but I opted to upgrade the barrel and hop up unit for better results. I highly recommend those looking to start upgrading this gun to install the following parts to get the good results I'm getting:
Madbull 6.03mm ~ 509mm Tightbore : $30 (Budget)
PolarStar Concave Spacer : $7
Systema Hop Up Bucking : $8
3-9x40 Rifle Scope (Nice for searching out targets. I'm not sure how much this would cost, since my dad gave me this type of scope from his .22)
With this setup, I have been able to hit a coffee can sized target from 140 feet away almost every time! Beyond that range, man sized targets are about 160 feet before the BB looses it's momentum and drops. I left the hop up unit stock, at least until the plastic parts wear out. *This gun doesn't come stock with a metal Hop up unit, but it very easy to get to.
As for magazines: the hicaps aren't bad, but tend to get wobbly and misfeed. I find that midcaps are better, especially King Arms AUG midcaps (They have the best fit out of all the mags I have tried). MAG brand 170 round midcaps are a bit hard to fit into this gun, but doable. I had to shim the notch on the mag to get it to fit properly. *Another note: The fire rate on this gun will eat through the 300 round hicaps like candy if you are trigger happy, so I would be careful! Buy some extra mags if this is an issue. I currently have 7 just to be sure: 4 hicaps, 2 midcaps, and 1 standard.
Well, if you have kept up with me this far, I'm sure you can tell I have had a lot of experience with this gun. It has it's Cons, but In my opinion it is a good choice! I have only been taken out 2 times in the last year while using this gun. My friends fear this weapon, and argue about who will be on my team. The range and power this gun can compete with just about any version 3 gun I have gone up against. I'm proud to be the only AUG user in my group, but I always recommend this gun to my friends who are new to the sport of airsoft. If you think that this gun still sounds as good as it did when you began this review, get it! You can't go wrong! If it doesn't shoot as well as you hoped, or you aren't seeing the same results as higher-end guns, it's not the end of the world. This is by far the best upgrade/project gun I have every seen, and is extremely easy to take apart and upgrade. JG hasn't always been the best company I have dealt with in the airsoft market, but this gun outshines that reputation!"