DLP Tactical Picatinny Mount Adaptor for ARC Rail Equipped ACH/FAST/MICH Combat Helmet 4 slot Picatinny rail adaptor for ARC Rail and similar helmet accessory rails Attach lasers, light, cameras, and more to your helmet. If it attaches to a Picatinny rail, you can now attach it to your helmet High strength polymer composite construction Quick release mechanism locks in tight when you need it but removes in seconds when you don't Proudly made by DLP Tactical