Leupold Mark 4 35mm Aluminum Rings

Installed these on my AR for a thermal optic and the cross-slot design lined up perfectly with the rail slots, zero movement after torquing. The machining is so precise that my scope sits dead-center without any shims needed.

Torqued down easily and locked onto the rail without any shifting—the cross-slot design gives me total confidence the scope stays put. The machining is so clean that the rings feel like they were cut for my 35mm tube specifically.

The fit on my Picatinny rail was so snug I didn't even need to adjust them—just torqued to spec and the 35mm tube locked in perfectly. The machining is noticeably precise, with zero play on the scope.