You don't need adjustable inserts if you buy the proper base for your rifle.
Looks like they have been discontinued.
Jerry
This is the one I'm after. They had a version previously that had the inserts but this one is new for this year
https://www.burrisoptics.com/ar-signature-qd-p.e.p.r.-mount
Unless someone has entered the coding wrong, these 3 bases are bye bye. Hopefully, just an input error??????
I would recommend the Burris XTR Sig rings. They will do the same thing
Jerry
Check at Al Flaherty. Thats where I got mine
It's in their 2019 catalogue so I dont think its discontinued. It might just not be released for sale yet and that's why I cant find it




























