Quality 300-400m AR scope on a 6.8MM Barret REC7 - Help?!

[CJE]

Hi everyone.
This is my first post to this part of CGN so apologies if I'm covering old ground. I did a quick search and didn't see anything current that answered my questions. Essentially, I'm looking for recommendations for a scope to mount on my Barret REC7 6.8mm AR rifle.

I'm a pistol guy doing my first AR build and my experience with scopes is limited to older more budget conscious hunting gear. From what I gather AR optics are a whole separate thing, so I'm looking for a little help from the CGN community.

So here are my parameters:

$1600 budget
Bright, clear, high quality optics
Something lit for quick acquisition would be nice
Not a fan of cluttered viewing windows. I know some optics come with trajectory cues for 5.56. That won't help me as I'm shooting 6.8SPC.
Durable and weather proof
Will mount on the REC7

Lastly, a magnification level that will give me a good chance at accuracy to 300-400m. If given the choice I'd take brightness and clarity over magnification level. I'm a better than average marksman (in a hunting context anyway) looking for an optic that will leave me some room to improve.

Thanks for any advice

 

[CJE]

Well, for those that are interested I wound up going with a Trijicon 4x32 LED ACOG. The ballistic reticule is calibrated for 5.56mm as they don't make one for 6.8mm yet - but I'm told this is the lightest and toughest optic around and the battery life on the LED is measured in weeks and months. Not hours.

 

[Davot]

No-one responded because we all knew you'd end up with a Trijicon.

 

[CJE]

Yeah I suppose it was inevitable. I just didn't know any better. One thing I should mention is the good people at Arms East pulled a rabbit out of a hat for me and managed to find a version with a 6.8mm ballistic reticule with a red horseshoe. Very rare and impossible to find. Yet they did. Huge props to them.