The Phase 5 OMR (Oversized Magazine Release) is a drop-in two-piece assembly that replaces the Mil-Spec magazine release button. Installation is easy and requires no gunsmithing. Both the OMR button and paddle are machined from 6061-T6 billet aluminum for a lightweight” strong design.
Phase 5 Weapon Systems Oversized Magazine Release, Grey Finish OMR-GREY
