The American Defense AD-DELTA-C is a lightweight quick-detach cantilever scope mount for AR-pattern rifles — this version in 34mm rings at medium height. The cantilever offset sets correct eye relief for variable-power optics on Picatinny rails, and ADM's patented Auto Lock QD lever system gives fast install/removal with a secure lockup and repeatable return-to-zero.
Machined from 6061-T6 aluminium with a hardcoat anodised finish, the Delta line trims weight while keeping a rigid platform, and is made in the USA.
Option: 34mm Medium Height — also available in 30mm Standard, 30mm Medium and 34mm High.
How It Compares
Want the standard-profile AD mount? See the AD-RECON, or the QD AD-RECON-SL 34mm. Browse all rifle scope mounts and build via AR-15 optics.
Ideal For
- 34mm-tube LPVOs on AR-pattern rifles
- Weight-conscious builds needing forward optic placement
- Shooters wanting quick-detach with return-to-zero
Key Features
- Lightweight cantilever design; 34mm rings, medium height
- ADM patented Auto Lock quick-detach levers
- Picatinny rail compatible; return-to-zero
- 6061-T6 aluminium, hardcoat anodised
- Made in the USA; lifetime warranty
Technical Specifications
| Type |
Lightweight cantilever QD scope mount |
| Ring Size |
34mm |
| Height |
Medium |
| Mount |
Picatinny (Auto Lock QD) |
| Material |
6061-T6 aluminium, hardcoat anodised |
| MPN / UPC |
AD-DELTA-C-M-34-STD / 810104931052 |
| Origin |
USA |
What's Included
- American Defense AD-DELTA-C cantilever scope mount (34mm medium)
- 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
DELTA-C or RECON?
The Delta line is lighter and lower-profile; the RECON is the standard-duty mount. Both use the Auto Lock QD system.
Standard or medium height?
Medium raises the optic slightly for larger objectives or a more upright head position.
Does it return to zero?
Yes — the Auto Lock QD levers give repeatable return-to-zero on reinstall.
