Features & Specifications Bungees enhance the security and stability of NVGs/VASs, eliminating rattle and vibration. Quickly and easily attach to NVGs/VASs and ARC Rails. For ACH style helmets. Available in urban tan, foliage green and black. Replacement Parts Ops-Core FAST & Sentry 22mm Ballistic Hardware Replacement Kits Ops-Core ACH Arc Rails Ops-Core ACH Skeleton ARC Rail Replacement Carabineer Bungees Ops-Core ACH Skeleton ARC Rails