If Burris was the only scope manufacture in the World I wouldn't own a scope.....iron sights would be what i would use and trust.....haven't owned Burris in 30 + years will never ever own anything made by them...
Had a 6-18 Burris scope on a Ruger 10-22 22 mag. 3 shots and an inside lens cracked....had a Burris 1 3/4-5 scope on a Remington 11-87 4 shots and the cross hairs disappeared....those were the fastest destruction on any scope made....Burris scopes that I have sent back over 20 that lasted more shots just failed and they were not on AR-15's shooting 5.56 but large calibers....
When I went on out of State or the Country hunts I would bring 2 extra Burris scopes sighted in just in case and had a few fog or not work over the years I used them....
Now using Nikons and Trijicons I only need to bring one extra and have never had to use one.....

Burris could go out of business for all I care ! They cost me a lot of grief over the years I tried to use them there just plane JUNK !