This particular unit comes pre-equipped to the G&G C.R.W.
I have recently had one of these in the shop, and to what I could get out of it, it just gets in the way.
You really don't want this to hold an extra mag, because, it doesn't hold a mag, it's meant to hold a dummy mag that holds a small battery. It really doesn't hold functioning magazines, they can just fall out with a tap.
So what I'm trying to say is, this is just a big chunk of metal that gets in the way. The owner of the CRW specifically asked me to remove it and wire the gun to the front.
Can hold a battery if you want to wire your gun through the side of the receiver.
But who in the right mind would want to do that when we have spacious stocks, empty hand guards, and roomy PEQ boxes.
Fat chunk of metal
Gets in the way
Adds unnecessary weight
Wont hold a functioning mag
Looks incredibly stupid
Scratches the front of your mag well
Rating: [3 of 5 Stars!]