Under the banner of UTG PRO, the M-LOK Standard QD Sling Swivel Adaptor is a testament to precision and durability. Manufactured in the USA, this adaptor is meticulously machined from 6061-T6 aircraft-grade aluminum, ensuring a sturdy and reliable product that can withstand the rigors of regular use. The matte black hard coat anodize finish not only adds to its aesthetic appeal but also enhances its durability. Despite its robust construction, the adaptor maintains a lightweight and low-profile design. This ensures it uses the least amount of space M-LOK requires while still delivering optimum mounting performance, making it a versatile addition to your firearm accessories.The adaptor's bidirectional mount design efficiently utilizes rail real estate. It can be mounted either in one slot or in between adjacent slots on the same track, offering flexibility in installation. It is designed to accept any quick detach sling swivel with a 0.37" diameter swivel stud, further enhancing its versatility.One of the standout features of this M-LOK Standard QD Sling Swivel Adaptor is the QD swivel housing. It is designed with quarter-turn rotational over travel stops. This unique feature restricts swivel movement and prevents the sling from unwittingly getting tangled, ensuring a smooth and hassle-free experience.The package includes M-LOK T-Nuts, screws, and an assembly tool for simple and friendly installation. There's no need for a gunsmith, making this a user-friendly option for all firearm enthusiasts. Whether you're a professional or a hobbyist, this high-quality, durable sling swivel adaptor is a valuable addition to your gear.