Hi guys, I'm looking for an assault rifle with ACCURACY at long distance(chest-size target at 150feet) and decent velocity(above 350FPS), and of course durability. My budget for the rifle itself is around $200 and I'm willing to spend another $50 to upgrade the accuracy. So would you guys kindly offer your opinions on my selections, thanks! A. Megastore Armory Full Metal AMR-4 SD Electric Blowback MOSFET Enhanced http://www.airsoftmegastore.com/438...ctric-Blowback-MOSFET-Enhanced-AEG-BLACK.aspx It looks really cool with many attractive features, and its official video proved its accuracy. It comes with full-metal construction and body and blowback feature and 6.03 TB barrel at $205. But I'm not sure if such a low price compromises something like durability or upgrade space. B. G&G M4 Raider Long http://www.airrattle.com/G_G_M4_Raider_Airsoft_Electric_BlowBack_Gun_p/egr-15p-rd-bb-l-dst.htm Not full-metal construction so unknown durability. C. CUSTOM 400 FPS DBoys Full Metal M4 CASV http://www.airsoftmegastore.com/408...lectric-Winding-Hi-Cap-And-Red-Dot-Sight.aspx Is DBoys good for durability and upgrade potentials? So what do you guys think?