AM DEF HOLOSUN AEMS QR LOWER 1/3

The AM DEF HOLOSUN AEMS QR Lower 1/3 mount delivers reliable optic positioning for shooters who demand repeatability. Whether you're building in Antioch or across the Bay, this American Defense Mfg mount pairs precision engineering with quick-detach convenience. Need help with your new optic setup? TacticCAL handles FFL transfer in Sunnyvale and can guide you through the complete process.

Quick-Detach Mounting and Lower Third Cowitness

This mount positions your optic in the lower third of your sight picture, maintaining cowitness with iron sights while keeping the footprint compact. The quick-detach system lets you remove and reinstall your optic without losing zero, essential for shooters who rotate between setups. American Defense Mfg builds these mounts to tight tolerances. If you're transferring a firearm and need mounting advice, our team at TacticCAL can walk you through options, including the private party transfer process. Visit our firearms dealer in Sunnyvale for our full catalog.

Frequently asked questions

Is this mount compatible with all AEMS red dot models?

This mount is engineered specifically for the HOLOSUN AEMS platform. Verify your optic model before ordering to ensure proper seating and QR interface alignment.

Can I remove this mount and remount it without tools?

The quick-detach system allows tool-free removal and reinstallation. The QR lever operates by hand, though you may need a hex key for initial rail mounting depending on your platform.

Where is the closest FFL dealer to Santa Clara, Mountain View, or Palo Alto?

TacticCAL Gun Store in Sunnyvale is a short drive from Santa Clara, Mountain View, and Palo Alto, serving the South Bay as a full-service FFL dealer for transfers and DROS. Find FFL dealer San Francisco at TacticCAL.