I keep checking budsguns. Guess I need to broaden my search.
6720 not 6920. Same exact gun but doesn't have the fat end of the barrel for grenade launcher attachment. The barrel profile is the same from the sight/gas block back to the receiver.
https://www.slickguns.com/search/apachesolr_search/colt+6720
I bought mine for $799 with free shipping but that sale ended Dec 31.
I use slickguns.com to crosscheck everything I want to buy, and usually just about everything on ODT can be found cheaper and brand new elsewhere. Sub-$450 G43s and sub-$500 G19s as far as the eye can see.