MDT Elite Scope Rings with Built In Anti-Cant Level

Anti-Cant devices are very important to long range precision shooters, it’s good to see scope ring and scope mount manufacturers incorporate anti-can’t bubble levels into their product offerings. Modular Driven Technologies the folks behind the MDT TAC21 Chassis System are now offering their Elite Scope Rings with Built In Level. MDT makes good stuff so I have every expectation that these rings will be well made and accurate. 

What’s an Anti-Cant Device Do? as the name implies it’s a level designed to help the shooter hold the rifle perfectly level and avoid “canting” or tilting the rifle when taking a shot.

Scope Tube Diameters

  • 30mm
  • 34mm
  • 35mm

Scope Ring Heights

  • Low .820″
  • Medium 1.000″
  • High 1.250″
  • Extra High 1.500″

MDT ELITE SCOPE RINGS

MDT Elite Scope Rings offer a solid, lightweight mounting system for your optics. Made from precision-machined aluminum.

MDT ELITE SCOPE RING DETAILS

The MDT Elite Scope Rings offer a solid, lightweight mounting system for your optics. Made from precision-machined aluminum, they are available in 30mm and 34mm diameters. The two diameter options are available in four different heights (measured from top of rail to center of bore).

MDT ELITE SCOPE RING SPECIFICATIONS

  • Designed for ultimate precision and strength
  • 25mm (0.984”) of lateral contact with scope tube
  • 30mm (1.181”) of lateral contact with mounting rail
  • The main body is machined on an automated seven-axis, high-end CNC machine tool
  • Extra wide profile provides extremely stable mounting
  • The bottom rail interface is machined at the same time as the scope clamp interface, guaranteeing all rings are square and parallel
  • CMM checked to 1.5 millionths of an inch precision
  • Machined from Billet 7075-T651 Aluminum – 1/3 the weight of steel with similar strength
  • Extra thick clamp system will never bend, fatigue, or become loose with use
  • Built-in bubble level on medium, high, and extra-high rings (No bubble level on low rings)
  • Stepped base-to-cap interface allows the fasteners on one side to be tightened before making final scope alignment adjustments
  • Six oversized #8-32 Grade 8 fasteners used for clamping the scope
  • Sleek curves blend well into most scopes

MDT Precision Scope Rings are designed and manufactured to STANAG 4694 specification, also known as “NATO spec”. This means the scope ring sits tight to the top of the scope base rail, with pressure being applied to the underside of the angled rail surfaces to maintain a solid interface (as shown below). This design also allows mounting on out-of-spec rails:

MDT ELITE SCOPE RINGS STANAG 4694 SPECIFICATION

MDT ELITE SCOPE RINGS STANAG 4694 SPECIFICATION

By contrast, US MIL-STD-1913 spec mounts attach only to the angles sides of the rail, leaving a small gap between the top of the rail and the underside of the mount, and significantly reducing the amount of contact area between the mount and rail:

MDT ELITE SCOPE RINGS US MIL-STD SPECIFICATION

MDT ELITE SCOPE RINGS US MIL-STD SPECIFICATION

Testing performed by NATO has shown that the STANAG attachment method increases the robustness of the interface, leading to increased alignment repeatability. MDT Elite Precision Scope rings can be mounted to scope base rails designed to both the STANAG and MIL-STD specifications.