For: Lancer Tactical Full Metal Dual Magazine Clamp for M4 AEGProduct Information:
This is a mag coupler which basically allows you to hold two mags at once, allowing for a super-easy reload in tense situations. I can recall one game where I was having trouble getting a spare mag out of my vest and I felt terror seize me as I realized if someone just took a step over the hill I was hiding behind, I would have been gunned down without a chance to even shoot back. For really short games, this mag coupler with two high caps almost eliminates my need for anything other than my gun with me on the field. It was definitely a game-changer for me and I absolutely love it.
I would buy it again and again.
I would imagine it'll fit on any M4 magazine
Very cheap. I've used it in almost every single game since I got it.
I can't think of any con at all.
Sometimes BBs get stuck but they can easy be fetched out, but that's something really... not even a problem.
Sometimes, although not often, the mags can become loose but this only happens if they are bumped or something. Otherwise they'll stay secure and ready.