Valken Sierra Airsoft Goggles w/ Thermal Lens PDI This gearbox is manufactured from

This gearbox is manufactured from one solid block of aircraft aluminum (Dural) EN AW 7075 T651

This mount allows for the attachment of night vision devices to the front of the optical sight

Comes with one K120 magazine

Die Cast Aluminum Body with powder coated Tan body

Valken Sierra Airsoft Goggles w/ Thermal Lens PDI This gearbox is manufactured fromThe Valken Sierra Thermal Goggles are a low profile, thermal lens goggle that is very resistant to cold and heat. These tactical goggles provide excellent resistance to fogging caused by temperature differences between indoor and outdoor, or between on site and ambient environment. The Sierra airsoft goggles are perfect to be used as airsoft eye protection, or during other work related jobs against chemical splash, sun glare, dust, flying particles,