The American Defense AD-RMR-LW QD Mount is a lightweight quick-detach mount for the Trijicon RMR, SRO and red dots sharing the RMR mounting footprint — this version at low height, the most compact option, with the QD lever on the left side — ideal for shotguns, PCCs and setups without iron sights. ADM’s patented Auto Lock QD lever attaches and removes the optic fast with repeatable return-to-zero, and self-adjusts to in-spec and out-of-spec Picatinny rails without tools.
Machined from 6061-T6 aluminium with a hardcoat anodised finish. Made in the USA.
Height: Low — also available in Absolute Co-Witness, 1.93in Height, Low (Right-Hand Lever).
How It Compares
Running an MRO or DeltaPoint Pro footprint optic instead? See the AD-MRO-LW mount or AD-TR-LW mount; for a Holosun 509T see the AD-509T mount. Browse all red dot mounts; read our co-witness heights guide.
Ideal For
- Trijicon RMR / SRO and RMR-footprint red dots on rifles, carbines, PCCs and shotguns
- Weight-conscious builds wanting quick-detach with return-to-zero
- Fast optic swaps between platforms
Key Features
- Fits the Trijicon RMR footprint (RMR, SRO and similar)
- Lightweight design; low; ~2.4 oz
- ADM patented Auto Lock QD lever; fits in/out-of-spec rails; return-to-zero
- 6061-T6 aluminium, hardcoat anodised; made in the USA; lifetime warranty
Technical Specifications
| Fits |
Trijicon RMR footprint (RMR / SRO and similar) |
| Mount |
Picatinny (Auto Lock QD) |
| Height |
Low |
| Weight |
~2.4 oz |
| Lever |
Standard |
| Material |
6061-T6 aluminium, hardcoat anodised |
| SKU / MPN / UPC |
AD-RMR-LW-L-STD / AD-RMR-LW-L-STD / 810008518984 |
| Brand |
American Defense Mfg. (USA) |
What’s Included
- American Defense AD-RMR-LW QD mount (low)
- Mounting hardware
UK Delivery & Support
UK-stocked and dispatched tracked from our UK warehouse — no import duties or customs delays — backed by UK-based support and the manufacturer’s lifetime warranty.
Frequently Asked Questions
Which optics fit?
Optics using the Trijicon RMR mounting footprint — e.g. RMR, SRO and similar red dots.
Which height should I choose?
Low is the most compact; absolute co-witness aligns with AR irons; lower-1/3 and 1.93in versions sit higher.
Does it return to zero?
Yes — the Auto Lock QD lever gives repeatable return-to-zero.
