Trijicon ACOG VCOG Mount w/ Q-LOC 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 the Trijicon ACOG and VCOG. This lightweight mount is perfect for mounting the ACOG and VCOG on any firearm platform with a picatinny rail. Specifications for Trijicon ACOG VCOG Mount w/Q-LOC: Manufacturer: Trijicon Height: 1.535 in Fabric/Material: 6061-T6 Aluminum Color: Black Length: 3.5 in Weight: 3.07 oz Width: 2.07 in Finish: Matte Anodized Country of Origin: USA Package Contents: Trijicon ACOG VCOG Mount w/Q-LOC 1 Mount 2 Screws 1 Hex Key Trijicon AC12042: ACOG VCOG Mount w/ Q-LOC Black