Glutton for criticism.....
 

Just kidding, this helps me alot. I still had the Colt Collector's Assoc. book and decided to stat up some of the AR's for Dark Conspiracy. I have discovered gear is fairly easy to do at times, very hard at other moments. This may be too fannish, but here they are.

I think it's pretty cool that you added the specific Colt civilian AR's. The only thing I think you could have added was before the LEO model's came out Colt AR's had these stupid front take down screws on the receiver instead of a normal pin. A lot of models had large pin holes on the lower receivers to prevent you from using M16 parts or other non Colt AR-15 parts. I don't think the 6920's have a sear block. My Colt Match Target had one of those stupid things, along with it's neutered look of no bayonet lug and no threaded barrel. I wished I bought a Bushmaster after I learned about all these stupid little features they did to their rifles back then. The AR-15A2 Sporter oddly enough lacked the magazine fencing on the lower receiver for some odd reason. I think once the 94 ban was lifted, Colt had too much competition from other AR style makers, that they had to dump the sear block and large pin holes.