Solid rail - Knight's Armament M4 Carbine RAS Forehand Assembly with Three 11-Rib Panels

I bought this for a M4a1 clone I'm working on and it is perfect. I was originally going to get the quad rail from Midwest Industries because it was the cheaper option but after I saw the real RAS on sale here I couldn't resist. It fits perfectly on my LE6920 and doesn't wobble one bit. This was exactly what I was looking for and I couldn't be happier with my purchase.