Trijicon ACOG Extra High Mount w/Q-LOC Technology Black. The spring-loaded design allows for constant retention and maintaining of zero even if the knobs are not tightened. This mount boasts a low weight and low profile design with precise return to zero performance and is compatible with any Mil-Spec or NATO Picatinny rail. Designed specifically for heads up shooting with the Trijicon ACOG. Specifications for Trijicon ACOG Extra High Mount w/ Q-LOC Technology: Manufacturer: Trijicon Cant: 0 MOA Ring Height: Extra High Condition: New Package Contents: Trijicon ACOG Extra High Mount w/ Q-LOC Technology What's in the box: 1 - Mount 2 - Screws 1 - Hex Key Trijicon AC12044: ACOG Extra High Mount w/Q-LOC Technology Black