BKL 566 1" Long Dovetail to Weaver/Picatinny Adaptor Mount is designed to accept Weaver-style mounts. This model mounts to 3/8" or 11mm dovetails. It is ideal for Red Dot scope mount. Available in Matte Black only. Airgunners and shooters benefit from the proliferation of Picatinny rail-mounted optics and accessories with Dovetail to Weaver/Picatinny Adaptor Mount. Technical Specifications of BKL 566 Dovetail to Weaver Adaptor Mount: - Fits 3/8" or 11mm Dovetail; - Riser Height Adds: 0.69"; - Overall Height: 0.76"; - Overall Length: 1"; - Clamp length: 1; - Weight: 2.1 oz; - This item sold as a set. BKL Technologies is the manufacturer of the largest selection of gun and airgun scope mounts in the U.S. Competition-grade scope mounting system includes scope mounts, scope rings, dovetail to weaver adapters, and scope risers that utilize a quick-installing and self-aligning clamping system that fits both 11mm and 3/8" dovetails. BKL mounts are compatible with popular gun and airgun manufacturers. Try BKL, and discover why many shooters use no other mount.