Trijicon, Bolt Action Mount, Static, 30mm, Anodized Finish, Black, 1.125" Bore Height NEW Quick-Release, Return-To-Zero Automatic Retention Keeps Optic Secure Snag-Resistant Knob Design Precision-Cut Dimensions Proven Durability 30mm Product Description The Trijicon Bolt Action Mount features a 30mm 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.