Brownells is bringing back Retro M16A1 furnitures.
It comes in Black, Green, or Brown. The kit includes triangular handguard, A1 buttstock and grip. It is not an exact copy of original components or their construction, but will satisfy those who are looking for retro build.
http://www.brownells.com/rifle-parts/stock-parts/furniture-sets/ar-15-retro-furniture-sets-prod109340.aspx
Price $79.99