American Defense Mfg. AM DEF HOLOSUN 509T CO-WITNESS
$82.40
The AM DEF HOLOSUN 509T CO-WITNESS mount from American Defense Mfg. is engineered for precision and reliability, ensuring your Holosun 509T red dot sight is perfectly aligned with your iron sights for rapid target acquisition. Built to withstand rigorous field conditions, this optical accessory is a must-have for serious shooters seeking a robust and dependable optics solution.
7 in stock
The American Defense Mfg. AD-509T is an optic mount with a co-witness height. It fits the Holosun 509T footprint and features a black anodized finish and quick release.
- Manufacturer: American Defense Mfg.
- Model: AD-509T
- Category: Optical Accessories
- Fit: Holosun 509T footprint
- Height: Co-witness
- Finish: Anodized
- Color: Black
- Feature: Quick release
- Manufacturer Part Number: ADMAD-509T-10-STD
- UPC: 810008517819
| Weight | 0.250 lbs |
|---|---|
| Dimensions | 4.750 × 2.500 × 2.500 in |
| Manufacturer | American Defense Mfg. |
PROCESSING & SHIPPING
Orders typically ship within 1–3 business days (Monday–Friday) after payment and all required documentation are received. Time to arrival after shipment depends on the carrier. Shipping method is at BT Gun Company’s discretion; ammunition and oversized accessories are charged at actual shipping cost. We do not ship to Hawaii or Alaska.
FIREARM TRANSFERS
- Firearms must ship to a licensed FFL dealer of your choosing — confirm with them first that they can accept the transfer.
- Your receiving FFL will need to email their license to [email protected] before we can ship.
- Inspect your firearm at your FFL’s location before signing ATF Form 4473 — once signed, the firearm is considered accepted.
You’re responsible for knowing the firearms laws in your state before ordering. For complete shipping, returns, and restocking-fee policy details, see our Shipping & Returns page.

Reviews
Clear filtersThere are no reviews yet.