CS-1 A2 K9 Helm Replacement Shell ONLY

CS1 replacement shells fit all CS-1 and CS1-A2 Gogglehelms made — 2023 and newer. They come with left and right side internal cheek vents and Velcro hook panels installed, and a user guide. Swapping shells involves removing 8 screw fasteners from the existing GoggleHelm: 2 at the rear, 2 on both left and right sides, and 2 on top for the picatinny rail. Installing these fasteners gently, with minimal tightening force is a must, to avoid stressing the shell. Overtightening fasteners causes stress cracks in polycarbonate plastic. Low strength threadlocker like Loctite 222 or equivalent is required. Higher strength threadlockers are strongly discouraged, as it may prevent future disassembly.