I am unable to compliment you adequate about this gun. I have saved a picture of it on my desktop so I am able to "clone" it sometime. just one information point, I picked up a handful of salty employed P&S M4 RAS's from Thoroughbred for $one hundred fifty ea. https://m4rasrail17261.dreamyblogs.com/29881455/the-best-side-of-knights-armament-m4-quad-rail