The Holosun 407K/507K Adapter Plate for Glock MOS is a durable and easy-to-install optics mounting solution designed to provide a stable base for your Holosun 407K or 507K optic. Constructed from lightweight stainless steel with a corrosion-resistant hard-coat anodized finish, this adapter plate ensures reliability and longevity under punishing recoil and heavy use. The chamfered edges allow for a snag-free carry and quick draw, making it compatible with most optics-ready holsters. Favored by professionals and target shooters alike, this adapter plate includes all necessary installation hardware and is backed by a lifetime warranty for long-lasting dependability.