Got these midcaps for my jg/vector arms mp5 and they are... FANTASTIC. great feed flawless. here the pro vs. cons
overall: great mag, thinking about getting the kind arms m4 cqb seems like a great company...
great for sprints and close quarters where you don't want to wind.
plastic(still durable) dropped them a few times
don't know what the guy below me is talking about they work fine just put some electric tape on it
Rating: [5 of 5 Stars!]