Holosun HSCQD1 Lower 1/3 Co-Witness QD Mount

The Holosun HSCQD1 is a two-piece lower 1/3 co-witness Picatinny mount designed to accept Holosun 503 and 403 series red dot optics. It uses a quick-detach lever system for rapid attachment and removal and ships with installation hardware and a spacer to set lower 1/3 co-witness height. The mount is machined from 6061 T6 aluminum and finished with a hard-anodized, corrosion-resistant coating for durability in field use. Intended uses include target/precision shooting and competition where a lower 1/3 optic position and fast detachment are desirable.

Product Specifications

• The manufacturer is Holosun.
• The part number is HSCQD1.
• The product name is Holosun Red Dot Sight Mount Lower 1/3 Co-Witness 2-Piece QD.
• Compatibility is with Holosun 503 and 403 series optics.
• The mount interface is a Picatinny rail.
• The mount provides a lower 1/3 co-witness height.
• Construction material is 6061 T6 aluminum.
• The finish is a hard-anodized corrosion-resistant finish.
• Retention uses a quick-detach lever for rapid attachment and removal.
• The package includes a spacer to set the lower 1/3 height.
• Included hardware consists of four installation screws and an Allen wrench.
• This product is a 2-piece mount.
• The category is Red Dot Mounts.
• The weight is 0.21.
• UPC is 760921087671.

This two-piece quick-detach mount provides a practical, durable way to position compatible Holosun optics at a lower 1/3 co-witness height while retaining the ability to remove the sight quickly. The machined aluminum construction and corrosion-resistant finish suit repeated use in range and competition environments, and the included hardware simplifies installation.