Holosun QD Low Mount – Quick-Detach Lower 1/3 Co-Witness Mount

Holosun QD mount for 403/503 series sights on AR-15 rifles. Made from 6061-T6 aluminum with anodizing. Lower 1/3 Co-Witness height for optimal sight picture. Includes spacer for height adjustment.

Lower 1/3 Co-Witness

Mount height positions red dot above iron sights (lower third of field of view). Red dot appears over front sight, providing wide field of view without iron sight obstruction.

Quick Detach QD Mechanism

Quick Detach lever allows instant sight mounting and removal without tools. Secure Picatinny/Weaver rail attachment. Repeatable zero after multiple removals/installations.

Compatibility

Fits: Holosun HS403, HS503, HE403, HE503 and all Aimpoint Micro T1/T2 footprint sights. Universal Picatinny rail.

6061-T6 Aluminum

Construction from 6061-T6 aluminum with Type III hard coat anodizing. Included: mount, 4 optic mounting screws, Allen wrench. Weight ~55g.

Professional Optics

Authorized Holosun dealer. Store in Split, Croatia. Fast European delivery.

Technical Specifications