Re: redi mag system
pat. I have one one my M4 with a BAD lever. It works as advertised.
The Redimod from Blue force is the way to go if you want to buy outright. Or get the same one that has not been machined and take a square, Dremil and files to it. It does indeed cut off the extra weight. You can cut out the extra metal on your own without trouble. It does not reduce the strength at all. The Redi-Mod from BFG is CNC'd and parked tho.
If you hunt around a couple of AR centric sites you can find one someone started and gave up on for sale cheap.
WITH PRACTICE. A BAD and Redimag is the fastest reload in a M4 there is. Fastest, easiest malfunction clearance too. If you shoot mag mono-pod prone, it more than doubles the area in contact with the ground.