May 15, 2019 fast306stang The Hen that laid the Golden Legos 378 0 Joined Sep 3, 2011 Messages 23,616 Reaction score 41,168 Location Centerville May 15, 2019 #1 https://www.armsunlimited.com/Colt-AR15A2-Complete-Upper-Receiver-Assembly-p/cura-a2.htm