GBRS Group® HYDRA V2 Mount / EOTech® EXPS

The GBRS Group HYDRA V2 is a high-rise mount designed for EOTech EXPS holographic sights. It positions the sight's optical axis 2.91" / approximately 73.9 mm above the mounting rail. An elevated front Picatinny platform provides space for a compatible laser aiming module, light, thermal optic, or other accessory while freeing up valuable space on the handguard.

2.91" Optical Axis Height

The HYDRA V2 positions the EOTech EXPS sight's optical axis 2.91" / approximately 73.9 mm above the top surface of the mounting rail. The elevated position supports a more upright head posture and can make the optic easier to use with a helmet, communications headset, protective mask, or night vision device.

Elevated Picatinny Platform

The front of the mount features an elevated Picatinny platform for compatible accessories such as a laser aiming module, weapon light, or thermal optic. Moving accessories above the primary optic mount frees up handguard space, particularly on compact platforms with limited rail length.

Designed for EOTech EXPS Sights

This HYDRA V2 version is specifically designed for EOTech EXPS holographic sights. GBRS offers separate versions for EOTech XPS sights, selected Aimpoint models, and the Trijicon MRO, so the mount must be selected according to the specific optic.

Second-Generation Improvements

Compared with the original version, the HYDRA V2 has a shorter rear base that allows a compatible FTC magnifier mount to be positioned closer to the primary optic. The updated construction also features a reinforced neck and an enlarged pass-through opening. The front platform includes holes for directly mounting a compatible laser aiming module.

6061-T6 Aluminum and Steel Hardware

The mount body is machined from 6061-T6 aluminum and protected by a Type III Class 2 hard-anodized finish compliant with MIL-A-8625. The clamping bar and screws are made from 17-4 PH stainless steel in H900 condition and feature a Melonite QPQ finish. The washers are made from 18-8 stainless steel.

Weight and Package Contents

The EOTech EXPS version weighs approximately 6.4 oz / 181 g. The package includes the HYDRA V2 mount and a 1/4" T25 bit for installation.

Made in the USA

The mount is designed, manufactured, and assembled in the United States.

Key Features:

• Designed for EOTech EXPS holographic sights
• Optical axis height of 2.91" / approximately 73.9 mm
• Supports a more upright head position
• Elevated Picatinny platform for additional accessories
• Frees up space on the handguard
• Shortened rear base for a compatible FTC magnifier mount
• Reinforced neck
• Enlarged pass-through opening
• Direct-mount holes for a compatible laser aiming module
• 6061-T6 aluminum body
• 17-4 PH H900 stainless steel clamping bar and screws
• Melonite QPQ finish on the clamping hardware
• Type III Class 2 hard anodizing compliant with MIL-A-8625
• Weight of approximately 6.4 oz / 181 g
• 1/4" T25 installation bit included
• Made in the USA