"Great build quality! Looks and feels awesome! The stocks are gorgeous, and robust. The blow back recoil is satisfying and sounds cool. Bolt is full travel and heavy. Mags don't leak, and I'm getting about 2.5 mags worth of shooting out of each green gas charge. Beware! It does not like the MadBull .43s at all! Chews 'em up as they are fed. The .36s work fine though.
Barrel attachments like gas tube, and flash hider are pinned on like the real steel, not grub screwed on. Nice touch. Gas tube adjustment rotates like on the real gun, however it is of course non functional.
By the way, the description of this rifle says the receiver is billet aluminum. This is incorrect. My magnet says it is STEEL! Yeah buddy! Lots of steel on this gun. The flash hider, receiver, dust cover, mag, butt stock end plate, fire control group, forestock end caps and gas tube adjustment are all steel. The bolt, front and rear sites, barrel, and gas port housing (on the barrel) are either aluminum or pot metal. This gun will last! Oh, and just an aside. Get a real POS or POSP scope for this, not the inexpensive copy. Trust me on this, you will regret the cheap one. Don't ask how I know this.....
All in all, a great gun. It may benefit from the install of a tight-er bore barrel, but I have yet to run that experiment. This concludes my review. Good luck, and be careful out there.