The Holosun 509 Series Lower 1/3 Picatinny Mount 1.63 in, Black is a mounting accessory that fits Picatinny.
The 509MNT-1.63-PIC mounts Holosun 509 series and AEMS-MACRO optics to standard Picatinny rails at a 1.63" height, providing a natural upright shooting position for rifles, PCCs, and shotguns.
How It Compares
Also compare the 509 Adapter for Picatinny, Low Mount, Picatinny Mount for Holosun 407C/507C/508T and 509 Adapter for HS507C Footprint. Browse all optics Accessories and the full Holosun range. New to this? Read our guide: Caring for Your Optics: Cleaning and Off-Season Storage.
Ideal For
- Mounting a Holosun 509 series or AEMS-MACRO optic at a 1.63 in height
- Rifles, PCCs and shotguns with standard Picatinny rails
- A natural upright head position behind an enclosed optic
Key Features
Key Features
- 509 & AEMS-MACRO Compatibility Designed to support Holosun 509 series enclosed optics and the AEMS-MACRO series for flexible mounting across multiple firearm platforms.
- Standard Picatinny Rail Interface Attaches securely to any MIL-STD-1913 Picatinny rail for use on rifles, PCCs, and shotguns.
- Lower 1/3 Co-Witness Height (1.63") Positions the optic at a 1.63 inch height to support a comfortable upright shooting posture and improved sight alignment.
- Optimized for Modern Rifle Platforms Ideal height for AR-pattern rifles and similar platforms where a heads-up shooting position improves target acquisition.
- Precision Machined Aluminum Construction CNC machined aluminum mount delivers dependable strength and consistent optic alignment.
- Secure Mounting Interface Engineered to maintain optic stability and hold zero through recoil and extended shooting sessions.
- Lightweight Low Profile Design Streamlined mount keeps overall weight low while maintaining a strong mounting platform.
- Hard Anodized Finish Protective surface treatment increases resistance to wear, corrosion, and harsh environments.
- Simple Installation Straightforward mounting system allows quick installation on any compatible Picatinny rail platform.
- Compatible with Picatinny rail systems
- 6061 aircraft aluminum construction
- Corrosion-resistant anodized finish
- Lower 1/3
- Lower 1/3 Mount
Compatibility & Fitment
Fits Picatinny. Not sure it fits? Contact us before you order and we will check for you.
Technical Specifications
Brand | Holosun |
Type | Mounting Accessory |
Model | 509 Adapter |
Description | Lower 1/3 |
Color | Black |
MPN | 509MNT-1.63-PIC |
UPC | 810047071082 |
US Shipping & Support
Genuine Holosun, brand new and covered by the manufacturer's warranty. Shipping is free on US orders of $99 or more, and smaller orders ship from $6.95. Questions about fit, mounting or which option suits your setup? Our team is glad to help before and after your purchase.
Frequently Asked Questions
What does the 509 Adapter fit?
Fits Picatinny.
Is this a genuine Holosun product?
Yes. It is a new, genuine Holosun product sourced through an authorized US distributor.
How much is shipping?
Shipping is free on US orders of $99 or more. Orders under $99 ship at a flat rate from $6.95 to $9.95, depending on the order total.
