Features:UTG PRO M-LOK Made in USA Standard QD Sling Swivel AdaptorPrecision Machined from 6061-T6 Aircraft Grade Aluminum with Flat Dark Earth Cerakote Finish for Best Corrosion and Wear ResistanceLightweight, Low Profile Design Uses the Least Amount of Space M-LOK Requires While Retaining Optimum Mounting PerformanceAdaptor Bidirectionally Mounts and Efficiently Utilizes Rail Real Estate by Mounting Either In One Slot or in Between Adjacent Slots On the Same TrackAccepts Any Quick Detach Sling Swivel with 0.37" Diameter Swivel StudQD Swivel Housing Designed with Quarter-turn Rotational Over Travel Stops to Restrict Swivel Movement and Prevent Sling from Unwittingly Getting TangledIncludes M-LOK T-Nuts, Screws, and Assembly Tool for Simple and Friendly Installation, No Gunsmith RequiredSpecifications:Material: AluminumHeight: 0.46 inLength : 1.33 inWeight: 0.4 ozColor: Flat Dark Earth