509 Adapter For Picatinny 1/3 Co-Witness
$59.99 at GunMag Warehouse · 7 stores
In stock
Best price
$39.99at GunMag Warehouse
In stock checked Oct 21, 2026
Where to buy
| Store | Price | Availability | Buy | Add to build |
|---|---|---|---|---|
| GunMag Warehouse Best price | $39.99checked Oct 21, 2026 | In stock | Buy at GunMag Warehouse | |
| MidwayUSA | $39.99checked Oct 21, 2026 | In stock | Buy at MidwayUSA | |
| Kentucky Gun Co | $39.99checked Oct 21, 2026 | In stock | Buy at Kentucky Gun Co | |
| OpticsPlanet | $42.99Salechecked Oct 21, 2026 | In stock | Buy at OpticsPlanet | |
| Battlehawk Armory | $39.99Salechecked Oct 21, 2026 | Check store | Buy at Battlehawk Armory | |
| Brownells | $29.99Salechecked Oct 21, 2026 | Out of stock | Buy at Brownells |
Prices and availability change often, so confirm on the store's site before you buy. We may earn a commission from these links.
Price history
Lowest in-stock price in the last 30 days: $39.99 at GunMag Warehouse. Dashed line = out of stock. Tracking since Sep 28, 2026.
Show the prices as a table
| Store | Latest | Lowest | Highest |
|---|---|---|---|
| Battlehawk Armory | $39.99 | $39.99 | $39.99 |
| Brownells | $29.99 | $29.99 | $29.99 |
| GunMag Warehouse | $39.99 | $39.99 | $39.99 |
| Kentucky Gun Co | $39.99 | $39.99 | $39.99 |
| MidwayUSA | $39.99 | $39.99 | $39.99 |
| OpticsPlanet | $42.99 | $39.99 | $45.49 |
Since Sep 28, 2026.
About this part
The 509 Adapter For Picatinny Low is an optic mount from Holosun. It's sold by 6 stores (4 in stock), from $29.99 to $42.99. The lowest in-stock price in the last 30 days was $39.99 at GunMag Warehouse.
Specifications
- Manufacturer
- Holosun
- Type
- Adapter Plate
From the manufacturer
Adapters for the Holosun 509 model. Mfg: Holosun
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