The Trijicon Bolt Action Mount features a 34mm tube, and is designed to keep the optic as low as possible for hunting and long range precision rifle applications. Featuring a Mil-Spec drop test rated 6061-T6 aluminum design and a flush mounting bolt configuration for a sleek side profile.The mount boasts a low weight and low profile design with superior return to zero performance and is compatible with any Mil-Spec or NATO Picatinny rail. Designed specifically for variable power optics, this lightweight mount is perfect for mounting Trijicon Variable power optics with an objective lens up to 42mm on any weapon platform with a full Picatinny rail.