VORTEX Defender ST GreenDot 3 MOA

Available directly from stock.

The VORTEX Defender ST Green-Dot is a micro reflex sight specifically designed for professional users and authorities. Especially when used on optical ready pistols in combination with a holster, this red dot sight shows what it can do: the slim design and the extremely robust housing make handling perfect.

The big brother of the well-known and proven Defender CCW combines its tested design elements with more modern technology and a larger viewing window. The ST is larger than the CCW and uses a CR2032 battery and the Leupold Delta Point Pro footprint, allowing it to be mounted on the current optical ready Sig Sauer pistols without a mounting plate. For Glock MOS and Picatinny rails, suitable adapter plates are already included in the delivery.

This micro reflex sight also offers the best conditions for use in sporting, dynamic disciplines with its 3 MOA dot and distortion-free, parallax-free optics. Even when used on long guns, the sight provides advantages due to its robust construction and large lens.

The green dot in 3 MOA is 10-level dimmable, activates automatically with movement, and turns off automatically after 10 minutes without movement. The multi-coated aspherical lens ensures a clear, distortion-free view, and the Shockshield polymer inserts absorb shocks and vibrations, significantly increasing the lifespan of the sight.

The housing is designed to be so stable and features a textured front that reloading pistols with the sight on edges is possible. The sight is, of course, dust and waterproof.

Product details:

Vortex Defender ST

3 MOA
green dot


Leupold Delta Point Pro footprint

Sig Sauer compatible


Mounting plate for Glock MOS & Picatinny included
Reticle adjustment 1 MOA per click (approx. 2.9cm/100m)

Vertical adjustment range: 145 MOA (approx. 4.2m/100m)
Horizontal adjustment range: 115 MOA (approx. 3.3m/100m)


manual brightness control in 10 levels

Activation via motion sensor
Deactivation after 10 minutes without movement


Battery: CR2032

Lifespan approx. 25,000h at level 6


stable housing and textured front for reloading
hard-coated, aspherical lens
Housing made of 7075 aluminum
Weight: 41g
Dimensions: 45x30.5x30.5mm (LxWxH)

VORTEX is a US-American optics manufacturer based in Wisconsin since 1986 and is still operated as a family business today. All products are developed, manufactured, and tested in-house, providing VORTEX with high quality and an outstanding variety of products, including red dot sights, rangefinders, and high-quality riflescopes.

Warning: This product contains very small and/or button batteries. 

Improper handling of batteries can lead to significant injuries or even death within just 2 hours, especially in young children (e.g., chemical burns and possible perforation of the trachea). If you suspect that a battery has been swallowed, please seek medical attention immediately. Keep batteries out of the reach of children and dispose of empty or defective batteries immediately in accordance with local disposal regulations. 
General usage note: Always insert batteries correctly (+/-), risk of injury from fire, explosions, or leaks, do not disassemble, charge, crush, expose to fire or high temperatures.

Note: Battery and Electrical Act (Section 18 BattG in conjunction with Section 10 Paragraph 1 ElektroG)