About two weeks ago I ended up buying a Beretta 1301 Tactical Mod 2 with a Chisel Machining Folding Stock for many reasons after researching. I used to own an M4 years ago, but sold it. I always regretted that and wanted another one, until I discovered the 1301. I decided if I went with another M4, it would cost me so much additional money to make it into what the 1301 already offered. Folding stock, QD attachment points, RMR mount, over sized charging handle, over sized bolt release, 2 forward M Lok slots, prolifter shell loading system, the blink gas system cycles faster, it almost 2lbs lighter, etc. So basically I have a Surefire Scout light mounted on the left side at the forward M Lok slot with a Valhalla Tactical ODA Tailcap button.