RMAX14 Mini-Rail Dovetail J-Arm for Thermal and Night Vision Monoculars RMAX14 is an all-metal night vision J-arm designed for mini-rail equipped thermal monoculars such as FLIR Breach, Infiray MH25 and night vision monoculars including MUM-14. The structure is manufactured entirely from 7075-T6 aluminum alloy to provide high rigidity and durability while maintaining a lightweight design. The rotating knuckle allows the monocular to swing away from the eye and stow tightly against the helmet when not in use. The friction-based mechanism allows positioning in front of either eye and enables interpupillary distance adjustment. Fore and aft positioning is infinitely adjustable for improved compatibility with various helmet configurations. Key Features Compatible with mini-rail thermal monocular devices Compatible with MUM-14 night vision monocular All-metal construction 7075-T6 aluminum alloy structure Rotating knuckle for swing-away function Fore and aft adjustment Adjustable interpupillary distance Tether attachment point Lightweight 1.4 oz design Lifetime warranty Made and assembled in USA Compatibility FLIR Breach Infiray MH25 (not RH25v2) MUM-14 monocular Thermal monoculars using mini-rail interface Helmet Mount Compatibility Dovetail style helmet mounts required Not compatible with bayonet style mounts Technical Specifications Specification Details Material 7075-T6 aluminum alloy Weight 1.4 oz IPD Compatibility 55 - 75 mm Dimensions 3.5 x 1 x 1.25 inches Included RMAX14 arm 3/32 inch bit Important Notes Requires dovetail style helmet mount No auto shutoff function integrated