Arisaka Defense - Eotech EXPS Mount Mk2 2.26" - Black

The primary benefit of the Arisaka Eotech EXPS Mount Mk2 is its ability to provide a 2.26-inch centerline optic height without the need for a riser. This height is optimal for users who require improved sight alignment, especially when using magnifiers like the Arisaka 2.26" Magnifier and Unity FAST FTC. By eliminating the need for additional risers, the mount simplifies the setup and reduces the potential for misalignment or instability during use. This makes it particularly advantageous for tactical and competitive shooting scenarios where precision and reliability are paramount.

The ADM QD lever on the Arisaka Eotech EXPS Mount Mk2 allows for quick and secure attachment and detachment of the optic. This feature is particularly useful in dynamic environments where the ability to rapidly change configurations is necessary. Whether you need to switch optics or remove the sight for transportation, the QD lever ensures that you can do so efficiently without losing zero. This capability is critical in both tactical operations and competitive settings where time and precision are of the essence.

The Arisaka Eotech EXPS Mount Mk2 is constructed from CNC machined 7075-T651 aluminum, finished with MIL-A-8625 Type III hard coat black anodizing. These materials are chosen for their durability and resistance to wear and corrosion, making the mount suitable for rigorous use in harsh environments. The 7075-T651 aluminum provides a strong yet lightweight structure, ensuring that the mount can withstand the recoil and stress of repeated use without adding unnecessary weight to your setup. The hard coat anodizing further enhances its durability, protecting the aluminum from scratches and environmental damage.

The Arisaka Eotech EXPS Mount Mk2 is compatible with all reticle variants of the EXPS3 and EXPS2 models. This includes the EXPS3-0, EXPS3-1, EXPS3-2, and EXPS3-DCR. However, it is not compatible with the EXPS3 HD, XPS3, XPS2, 518, 558, 552, or 512 models. This specific compatibility ensures that users with these Eotech models can benefit from the enhanced mounting height and features of the Mk2 without compatibility issues.

The 2.26-inch centerline height of the Arisaka Eotech EXPS Mount Mk2 is significant because it aligns with the height of popular magnifiers and other accessories. This alignment is crucial for maintaining a consistent sight picture and ensuring that the user's line of sight is unobstructed. In tactical and competitive shooting scenarios, this height facilitates rapid target acquisition and transition between targets, which can be a decisive factor in performance. Additionally, it provides a more natural shooting posture, reducing neck strain during prolonged use.

The recommended torque values for installing the Arisaka Eotech EXPS Mount Mk2 are 25 inch lbs for the optic to mount connection and 12 inch lbs for the shroud. Proper torque application is essential to ensure that the mount is securely attached without risking damage to the components. Over-tightening can strip threads or warp the mount, while under-tightening may lead to movement or loss of zero during use. Using a torque wrench is advised to achieve these precise settings.

The optional FDE Cerakote finish on the Arisaka Eotech EXPS Mount Mk2 provides both aesthetic and functional benefits. Cerakote is a ceramic-based coating known for its durability and resistance to abrasion, corrosion, and chemicals. This finish not only enhances the mount's appearance with a flat dark earth color but also adds an extra layer of protection against environmental elements. This can be particularly advantageous in desert or arid environments where traditional black finishes might stand out or degrade more quickly.

The Arisaka Eotech EXPS Mount Mk2 weighs 2.8 ounces, which is an increase of 0.8 ounces over the OEM mount. While this adds a slight weight increase, the benefits of improved sight height and quick-detach capability often outweigh the minimal additional weight. For users focused on maintaining a lightweight setup, this tradeoff is worth considering, especially in applications where every ounce counts, such as in long-duration operations or competitive settings.

Yes, the Arisaka Eotech EXPS Mount Mk2 is designed to withstand harsh environments due to its robust construction and high-quality materials. The 7075-T651 aluminum and MIL-A-8625 Type III hard coat anodizing provide excellent resistance to wear and corrosion, making it suitable for use in extreme weather conditions and rugged terrains. This makes the mount a reliable choice for military, law enforcement, and outdoor enthusiasts who require equipment that can endure challenging conditions without compromising performance.

Installing the Arisaka Eotech EXPS Mount Mk2 requires basic tools and adherence to the recommended torque values. The mount comes with two 10-32x5/16" Phillips head undercut screws and two 6-32x5/16" Torx flat head screws. A torque wrench is recommended to ensure proper installation without over-tightening. Following these guidelines will help maintain the integrity of the mount and the optic, ensuring reliable performance in the field.