I bought the G&G GR15 raider blowback a couple days ago and i'm very impressed with the build quality. The gun Shoots at about 1,000 rounds per minute with an 8.4 fully charged at about 320~340 FPS. The RIS/RAS is very solid and I found absolutely no wobble. The blowback gives pretty decent recoil and sound. The forward assist is functional although i didn't find that out after a few days of owning the gun(the forward assist button has to be pushed all the way for it to work).
The stock buttplate is pretty hard to get off but if you install the battery right you can collapse it all the way. The tactical polymer grip is very comfortable. fully loaded the gun weighs in at about 7 pounds. overall this is a great masterpiece by G&G and is one of the best guns for $210
monolithic RIS is great for risers and scopes
made from a trusted company
hard to remove stock buttplate
barrel and buffer tube are glossy(not a big problem)
Rating: [5 of 5 Stars!]