Great drop-in - Knight's Armament M5 Rifle RAS Forend Assembly with Three 11-Rib Panels

Fantastic drop-in rail system. Use it on my M4 Dissipator. I prefer the fixed front site, so this allows me to use it and use whatever addons I prefer. It does add a bit of weight, but thats what I was looking for to minimize recoil impulse. Buying another one for an M16A4 clone. If you want something that is rugged AF, this is the product for you.