SI-AR4 Receiver Complete

Here is the finished model.The SI-AR4 Receiver is chambered in 5.56 NATO and is a light/medium AR platform with top,side and bottom rails.Everything was made from scratch with shapes except a portion of the top and bottom rail along with a portion of the lower receiver.

Here is the pastie [link] (Must credit if used)

I tidied up a bunch of shapes here and there as well as added a classic adjustable stock option but that can be removed from the back of the receiver so you can have a stock that is more flush with the body.