American Defense Mfg. machines quick-detach optic mounts in the USA around a cam-lock lever that returns to zero every time it goes back on the rail — useful on a straight-pull that shares glass between rifles, or on anything that travels in a slip. We stock the red dot range: AD-509T for the Holosun 509T, AD-AEMS for the AEMS, AD-RMR-LW and AD-MRO-LW lightweight mounts for the Trijicon RMR and MRO, and AD-TR-LW for the DeltaPoint Pro — in absolute co-witness, lower 1/3, low, 1.93 inch and taller heights, from UK stock.
All of these clamp to a Picatinny or Weaver rail, which is what an AR-pattern flat-top upper and most modern rifle rails carry. Compare all red dot sight mounts and mounting plates and adapters, and pick a height with the mount height chart. Browse the wider American Defense Mfg range, or find the optic to go on top in rifle dot sights, straight-pull rifle optics and AR-15 optics. Everything ships from UK stock with no import fees.
Frequently Asked Questions
Does a QD mount hold zero when removed?
Yes — the cam-lock lever is tensioned to clamp the rail identically each time, so the optic returns to the same point of impact after being taken off and refitted.
What are the taller heights for?
A 2.33 inch (59 mm) mount raises the optic to sit in front of a helmet-mounted night vision device; 1.93 inch (49 mm) is the usual choice for a heads-up shooting position without one, and lower 1/3 or absolute co-witness for iron-sight backup. Where night vision and thermal stand in the UK is covered in our article on the subject — worth reading before you buy for that purpose.
Will one of these fit my straight-pull?
Yes, provided the rifle carries a Picatinny or Weaver rail, which an AR-pattern flat-top upper does. Eye relief and height carry across from a self-loader unchanged.
