Burris Ruger to Weaver with Eliminator Laser Scope Rifle/MSR Mount Matte Black - 2 Piece - With this Burris adaptor you can use Burris Zee Rings on your Ruger rifle or handgun. It properly anchors and aligns your scope so you can consistently put rounds on the target. Features a solid steel design, strong and lightweight. Compatible with Ruger firearms that feature the proprietary Ruger integral mounting system. Firearm Fit: Ruger M77 w / Eliminator Laser Scope Mount Type: Ruger Integral Mount System