BLACKHAWK new lock-down sling swivels are precision machined and assembled to exacting tolerances for maximum performance and quiet carry Made entirely in the USA from premium steel, lock-down swivels utilize a positive locking mechanism designed to keep the swivel attached to your gun until you remove it The threaded lock-down plunger with knurled, all-steel plunger knob allows quick attachment to BLACKHAWK and other standard swivel studs Available in 1 and 1 loop sizes Precision manufactured in the USA Threaded lock-down plunger with knurled, all-steel plunger knob for maximum performance All steel construction for ultimate ruggedness and durability Finished to match fine blued or stainless firearms Lock-down swivels Detachable swivels only Positive locking mechanism