Originally Posted By: crowkiller51Those Carbon Fiber AR15’s like Omni or Bushmaster are lite
The bushmaster xm-15 qrc is 5.5# w/ alum receivers. I've seen little bad news about the newer Carbon fiber models. If you're building, look into pencil barrel profiles, a simple carbon fiber or very lightweight alum free float forearm, and a lighter stock - biggest weight savings there without huge costs. Lotsa lightweight build threads over at ar15.com. Some guys are getting under 4# bare, but the prices can get pretty crazy....depending what you call crazy.