CYMA Sport Full Metal Keymod M4 AEG w/ Keymod Handguard (Model: 13" Rail)

"Bought this as a beginner aeg looking to put a few attachments onto but ended up damaging it beyond repair only to find out it was literally impossible to remove the muzzle device. Also tried to swap the outer barrel but its completely unremovable from the upper receiver for some reason causing me to purchase a new outer barrel, and upper receiver. Do not purchase if you intend to make upgrades or major changes, otherwise its a decent gun with a little slow of a fire rate.

"Great gun except the bolt release is already broke and now it’s permanently open. Not very cool.

"Its a nice gun for people that are just getting into airsoft, its got a durable receiver and hand guard due to it being metal, its shoots 400 fps as advertised. its over all a good gun, but I was unable to use the 14mm negative threads due to the muzzle break on my gun being glued in with some really strong glue, as well as the little hex screw being glued in, on top of that I was unable to find an outer barrel compatible with the gun, so now I'm unable to use the tracer unit that I got for the gun.

"So I got a 10 inch rail and when it came I noticed the buffer tube screw was coming loose When I tightened it it seemed fine but then it came loose agian I was gonna tighten it the third time and maybe add some locktight but the bolt catcher came off so I decided to return it this has great reviews so maybe I got a bad one but it feels great the weight feels good had a little bit of a feeding issue and the hopup is super easy to adjust I would recommend this to people who would modify the gun

"I don’t know if mine was defective but the buffer tube will not stay attatched, it wobbles around and does not work, the mag release is also a pain and if the gun gets jostled mags can fall out, and the gun is made of a really cheap metal, despite that it performs great, just wish it didn’t keep falling apart

"This gun is good with a fully charged battery but mine was double shooting because of the brass barrel it comes with. I had trouble with the stock being to loose but a simple adjustment fixes it. It uses so much battery power that your battery will die in 5 rounds . Love the body and everything else.