DLP Tactical Spartan Side Armor-Up Kit for ACH/MICH / OPS Core Helmet (Delta Black) Adds additional non-ballistic protection against fragmentation and debris to your ARC rail equipped helmet. Quickly installs without modification to helmet or ARC rails Fiber reinforced Polymer construction is ultra-lightweight, Low-IR visibility, and non-magnetic Fits most ARC rail equipped ACH, MICH, PASGT, Lightweight Marine helmets, OPS-Core FAST or Team Wendy EXFIL helmets, and most other helmets. Mil-Spec finish, can be easily painted or hydro-dipped by the end user