It has the NVG mount that may have been added and modified later. Clear visor can be operated from either right or left hand. Smoke visor is operated by hand grip on the left.
The item "Gentex SPH4 Flight Helmet with NVG mount" is in sale since Thursday, May 7, 2020. This item is in the category "eBay Motors\Parts & Accessories\Aviation Parts & Accessories\Pilot Gear". The seller is "buyarmynavy" and is located in Fort Worth, Texas. This item can be shipped to United States.