Features: 100% Brand New Material Construction: Light Weight, Aerospace Grade Metal. Designed to provide a solid mounting platform with multiple adjustment points. One handed operation. Low Profile shape on the helmet. Attach NVG dummy like PVS15 / 18 (Op type Mount shroud was not included). Fit for OPS Core Shroud / Fast Base Jump Helmet / Standard Mich Mount Base. Specifications: This NVG Mounting System is unique that it provides two modes of operation. The G24 has the famous breakaway feature that provides the wearer the protection from neck or head injury. The first mode allows the mount to break away from the base under a stressed condition such as getting snagged during fast roping or hitting a hard object when entering or exiting a vehicle or building. With this breakaway feature serious neck injuries and equipment damage can be minimized or avoided. The second mode allows the Universal NVG Mount to securely lock the mount to the base. Description: Breakaway Feature allows Mount to Break Away under Stress, or to Securely Lock in Place by Means of a Breakaway Lever. Lock Release Lever allows NVG height to be easily adjusted up or down, then secured. A Mount Release Lever allows the operator to easily set the desirable mode (breakaway or locked), depending upon operational needs. An ergonomically placed Flip Release Button allows the Mount to "fip up" to a stowed position when the goggle is attached. This pivot mechanism is simple and robust by design and cannot loosen over time. A Tilt Adjustment Knob allows the operator to fine adjust the tilt angle of the NVG. A Fore/Aft Release Lever allows for fore/aft travel of the goggle. Releasing the lever allows the operator to set the fore/aft position of the goggle. An ergonomically placed NVG Release Button allows for one handed release of the NVG. Dimensions (Operational) 3.98 L x 2.60 W x 2.40 H. Weight (G24 Mount Only) .36 lb (5.76 oz). Vertical Height Adjustment: .900 Total Travel. Fore/Aft Travel: 1.10 Total Travel. J arm Condition:100% New Brand with High Quality! Material: metal Use with L4G24 Helicopter mount Left and right eye switching Applicable to original PVS14 night vision instrument Package: Package list : 1* Metal L4G24 NVG Mount + 1* Metal J Arm bracket