Features: 1.High quality material, durable and wearable, can use for a long time. 2.Multi-angle rotation. The connecting arm installed on the headset can realize 360 rotation of the headset. 3.When the headset not use, It can be folded outward or back to the helmet. More . 4.Two kinds of adapter, For OPS Core ARC and M-LOK rails. Specifications: Name: Tactical Headset Rail Bracket Material: plastic colour: Green Package Contents: 1 Set x Headset Rail Mount Bracket Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.