This is a very interesting piece of kit. It's just a slightly modified VSR-10 with a few aesthetic differences. It contains the "real-shock" system Tokyo Marui included in a couple of their models, which is definitely a point of interest. I have no clue how it works, and from what I was told, it just causes the gun to wear down faster. I would promptly recommend removing it. Has an adjustable trigger pull, which is useful for those that are really sensitive when pulling off "the shot". From what I can tell, it is just about fully compatible with aftermarket parts, as I have already installed a Laylax spring, Laylax piston, and Airsoft GI tightbore. All of the parts fit like a glove. Only real gripe is the stock; feels like it's just... I don't know. It's just kind of weird. Apparently it is "non-reflective", which would be cool except that the bolt has a crappy chrome coating covering it that shines like a freshly greased donut in the middle of a fireworks display. With a Laylax piston (that pink THING), the rifle is a lot quieter. Definitely good if your fighting by the frontlines. If you keep the iron-sights as opposed to switching to a scope, it makes a great rifle for counter-AEG work at medium range. I got this on sale for $100, which is brilliant since it is slightly better than the JG BAR-10. Definitely recommend this.
Compatible with aftermarket parts (as far as I can tell)
Love the iron sights (kinda of hard to use 'cus my vision is horrible)
Decent Stock parts
Hop-up is decent
Adjustable trigger pull
For $100, you can't blow it
"Real-Shock" (If that's your bag)
The stock is... weird (don't let this deter you!)
"Non-Relfective" is useless unless you remove the chrome paint (revealing hideous pot-metal color)
One of the screws holding the hop-up chamber together was stripped! @#$%
Stupid shakey barrel spacer
Mag sometimes misfeeds...
Real-shock does a great job... at screwing up your shots
Requires the removal of a pin to get off the piston head
Rating: [4 of 5 Stars!]