There are two common issues when mounting scopes to AR-style platforms—getting the right scope height and the right eye relief. The Leupold® Mark AR family of mounts solves both these problems..
RPM Bravo Series Cantilever Mount, 30mm with Co-Linear Bubble Level FDE (BC-30150-FDE)
Ruff’s Precision 30mm Bravo Cantilever riflescope mount include a built in co-linear bubble level. The bubble level can be easily viewed in the prone position by the non-dominant eye for quick reference.
Sig Sauer, BUCKMASTER Hunting Rings, 1" High, Black, Aluminum, Picatinny
Sig Sauer's proprietary aluminum alloy BUCKMASTERS Hunting Rings are machined with an exactness that is both strong and ductile. This allows Sig's rings to form around a riflescope, yet they will not damage the scope under proper installation.
C&H Precision, Optic Mounting Plate, Hellcat/RDP/PRO with RMSC Slide Cut to Holosun 407K/507K, Includes Mounting Hardware
C&H Precision, V4, Optic Mounting Plate, For Springfield Hellcat/RDP/PRO with RMSC Slide Cut to Holosun 407K/507K, Anodized Finish, Black, Includes Mounting Hardware