I recently converted from high to mid caps to avoid the winding, misfiring from three different brands, and general noise from moving with them. This was the first brand of mid-cap I tried in my G&G MP5 and I haven't bothered into looking into any other brands. They're plastic (which disappointed me at first coming from metal high caps) but feel durable and have a much more snug fit than any of the metal high caps. Haven't had a single misfiring issue with the exception of the last one or two BBs not feeding (there's usually much more unfired BBs at the bottom of a high cap though).
Quiet (No BB jostle when moving)
Three fit into an M4 mag pouch snugly
90+ rounds (I counted out 90 into a mag and was room for a couple more)
Speed loader required to fully load
Plastic (I like the lighter weight, but I have issue with the lack of realism)
Last BB rarely fires
Rating: [5 of 5 Stars!]