American Defense Aimpoint T1 Lightweight QR Co-Witness Mount
American Defense Mfg.
$134.69
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American Defense Mfg.
American Defense Aimpoint T1 Lightweight QR Co-Witness Mount
The American Defense Mfg. AD-T1 Lightweight QD Co-Witness Mount delivers a precision-engineered solution for mounting your Aimpoint T1/T2, Holosun, Romeo 5, and compatible micro red dot sights with speed, confidence, and repeatable zero retention.
- Patented QD Auto Lock Lever — tool-free removal and reattachment in seconds
- Co-witness height aligns red dot with standard AR-15 iron sights
- 20% lighter than traditional mounts for a more agile rifle setup
- Precision machined from aircraft-grade 6061-T6 aluminum for lasting durability
- Hard coat Type III Mil-Spec anodize finish resists corrosion and hard use
- Fits Aimpoint T1/T2, H1/H2, Crossfire, Romeo 5, and all standard micro footprints
Who This Is For
This mount is ideal for AR-15 and MSR owners who demand a battle-ready, lightweight optic mounting solution that transitions quickly between rifles or needs to survive hard use in the field. Whether you're a competitive shooter looking to shave grams, a law enforcement professional requiring zero-compromise reliability, or a serious home defender who wants co-witness capability with their backup iron sights, the AD-T1 LW QD delivers the precision and repeatability that American Defense Mfg. is known for.
Specifications
| Brand | American Defense Mfg. |
|---|---|
| Model | AD-T1 LW QD Co-Witness |
| Compatible Optics | Aimpoint T1/T2, H1/H2, Crossfire, Romeo 5, micro footprint red dots |
| Mount Height | Co-Witness (lower 1/3 co-witness compatible) |
| Material | 6061-T6 Aluminum |
| Finish | Hard Coat Type III Mil-Spec Anodize |
| Attachment System | Patented QD Auto Lock Lever |
| Rail Compatibility | MIL-STD-1913 Picatinny |
| Weight Savings | ~20% lighter than standard mounts |
| Tools Required | None — finger or flat blade adjustable |
| Made In | USA |
Frequently Asked Questions
Will this mount work with my Holosun 510C or SIG Romeo 5?
Yes — the AD-T1 LW QD mount is designed to accept any red dot optic that shares the standard Aimpoint Micro footprint. This includes popular options like the Holosun HS403/503 series, SIG Sauer Romeo 5, Vortex Crossfire, and similar compact red dots. Always verify your optic's base dimensions match the Aimpoint Micro pattern before purchasing.
What does "co-witness" mean and will my iron sights still be usable?
Co-witness means the mount positions your red dot at a height where your backup iron sights (BUIS) appear visible through the optic's lens simultaneously. On an AR-15 with standard-height iron sights, this mount allows you to confirm your red dot zero using your irons and transition to irons instantly if your optic fails — a critical advantage for defensive and duty use.
How repeatable is the zero when I remove and reattach this mount?
American Defense Mfg. engineered the Patented QD Auto Lock Lever system specifically for repeatable zero retention. The lever accommodates both in-spec and out-of-spec Picatinny rails, locking the mount securely without tools. Users consistently report return-to-zero performance suitable for duty and competition use, though a confirmation shot or two after reattachment is always recommended best practice.
