||I bought three of these for my custom m4, plastic body, everything internally is upgraded, 400fps, around 850rpm. They all worked for about one game, then two of the three would not feed at all, while the other one worked perfectly fine. They seem to be very durable, given the fact that after they would stop feeding in the middle of a firefight, i would throw them against the nearest rock, and they only have a few scratches. Throwing them did not break them, as they still work in my friend's g&g raider XL, and his vfc m4.
Throw proof, very durable
black, not a grey like some others
don't wobble in gun
great to relieve stress if you need to throw something
Stopped feeding after one game
Gets you killed in a firefight
3/5 since they are very durable, and they seem to work in some guns, but not all.
I do NOT recommend these, the EliteForce ones are just as good, cheaper, and feed in my gun along with my friend's vfc and g&g
Rating: [3 of 5 Stars!]