Mk1 Standard Inserts Accessory Rails Seamlessly integrates with NVGs and

Seamlessly integrates with NVGs and other eye protection products

Dimensions: 4"L x 2

rubbing it raw

Advanced composite materials

Designed for comfort during extended use

Mk1 Standard Inserts Accessory Rails Seamlessly integrates with NVGs andWhile Ops Core Mk1 Performance Protective Eyewear is durable, sometimes severe elements and use can take its toll. To keep your eyewear operating at peak performance, be sure to replace worn out frame inserts. Ops Core Mk1 Standard Inserts securely and interchangeably mount your Mk1 lenses in the frames. Should your mission require it, you can easily add additional protection from wind and dust with our Ops Core Mk1 Foam Inserts. All inserts provide a