AM DEF HOLOSUN AEMS QR CO-WITNESS

Quick-release mounts built for shooters who swap optics between platforms without losing zero. The American Defense AEMS mount holds your Holosun at true co-witness height, engineered for field-proven reliability. Whether you're setting up in Mountain View or elsewhere, TacticCAL supports your build with expert guidance and FFL transfer in Sunnyvale services for complete firearm acquisitions.

Quick-release engineering for optic durability

American Defense builds mounts that hold zero through repeated removal and reinstallation. The QR mechanism locks your Holosun AEMS at co-witness height without shims or compromise. Precision machining ensures consistent recoil transfer to your upper receiver. Many shooters running multiple uppers value this repeatability—swap your optic, return to zero. TacticCAL handles private party transfer process questions and mount compatibility for your specific platform. Visit our gun store in Sunnyvale for our full catalog.

Frequently asked questions

Does this mount work with all Holosun red dots?

No. This mount is designed specifically for the Holosun AEMS footprint. Verify your optic model before ordering to ensure proper fit and function.

What is co-witness height and why does it matter?

Co-witness aligns your optic sight picture with backup iron sights at the same focal plane. This mount positions your Holosun at that height, letting you run irons and red dot together without obstruction.

What is an FFL transfer in California?

An FFL transfer is when a federally-licensed dealer like TacticCAL receives a firearm shipped from another seller and processes California's required DROS paperwork to legally transfer it to you. TacticCAL is your gun store Morgan Hill in the Bay Area.