Parkerized finish provides correct appearance; QD swivel studs have cross drilled mounting holes for vertical or side carry. Front swivel stud attaches to free float or A-2-style detachable handguards. Requires drilling a single mounting hole in free float tubes. Rear QD sling stud replaces fixed military-type without modification to stock. Uncle Mike's Quick Detachable Sling Swivels have a parkerized finish, accept 1-1/4' slings. SPECS: Steel, parkerized, dark gray finish.