Since I do a lot of standing around with my rifle on call outs (hardly that anymore now that I'm the Commander) I wanted to have a lightweight SBR. v1 was this rifle with a standard MOE forearm and a MOE stock. I added the LWRC ultra compact stock and changed the forearm to the SL version. I also added the K grip and the Noveske 45 degree ambi. The light is temporary until the mini scout body I need comes in. The upper is a BCM lightweight 11.5". I need to weigh it on the scale at work but it's nice and light.