Description

Holosun 509 Adapter for Picatinny Lower 1/3 CoWitness

The Holosun 509 Adapter for Picatinny Lower 1/3 Co-Witness (Model 509MNT-1.63-PIC) is a rugged and lightweight mounting solution designed to attach Holosun 509 series enclosed red dot sights to any standard MIL-STD-1913 Picatinny rail. With a 1.63-inch optical centerline, the Holosun 509 Adapter for Picatinny Lower 1/3 CoWitness provides a lower 1/3 co-witness height that is ideal for AR-15 rifles, pistol caliber carbines, tactical shotguns, and other platforms equipped with flat-top rails.

Precision-machined from durable aluminum and finished in matte black, this mount offers a secure and repeatable interface that helps maintain zero under recoil and hard use. It is compatible with Holosun HE509T, HS509T, and other 509-footprint optics, making it an excellent option for shooters who want to use their enclosed emitter red dot on long guns.

Whether you’re setting up a duty rifle, defensive carbine, or competition firearm, the Holosun 509 Adapter for Picatinny Lower 1/3 CoWitness Mount delivers a comfortable heads-up shooting position and rapid sight acquisition.

Key Features

Designed for Holosun 509 series optics
Model Number: 509MNT-1.63-PIC
Fits all standard Picatinny and Weaver rails
1.63” centerline height for lower 1/3 co-witness
Precision-machined aluminum construction
Lightweight and durable matte black finish
Ideal for AR-15 rifles, PCCs, and tactical shotguns
Secure mounting interface helps maintain zero under recoil