Re: Armalite AR-10 A2 value
BB of Tactical Firearms has a 98% value at $1100. Some searching confirms that they're selling on the used market within the 950-1250 range depending on condition/accessories. With what you've described, I'd think you should get $1400-$1450 without any trouble. That should be a pretty good ballpark, we'll see what others think.
What are you gonna do, talk the alien to death? -- (on Sigourney Weaver's worry about Guns in Aliens)
"Safety is something that happens between your ears, not something you hold in your hands."
"I carry a small gun to compensate for my huge Blue press."