Skip to main content Skip to search Skip to main navigation
Alpen Red Dot

ALPEN OPTICS Argus LT Red Dot Sight 1x20x18 closed

Product information

Experience precision like never before with the ALPEN OPTICS Argus LT Red Dot Sight! Designed for harsh environments and equipped with a robust 6061 CNC Aluminium case, this innovative red dot sight enables fast and precise target acquisition for use with short or long guns. It can be easily mounted on all weapons with an RMR or Picatinny interface. The high-quality red dot sight is equipped with 3 illuminated reticles (3 MOA Dot, Circle, or Circle with Dot) and offers a battery life of up to 50,000 hours due to efficient battery use. You can adjust the reticle on the Argus LT red dot sight easily in 0.3 MRAD clicks, that is 3 cm at 100 m per click. The ALPEN OPTICS Argus LT Red Dot Sight 1x20x18 also impresses with its construction, as it is waterproof and shock-resistant.

Short & Crisp

  • High-quality red dot sight with 3 adjustable reticles
  • Robust yet lightweight aluminium housing
  • DynamicDot Technology saving energy and time
  • High-quality coating for absolutely clear viewing quality
  • Reticle adjustment in 0.3 MRAD steps
  • Waterproof and shock-resistant

Product Review

Discover the innovative world of Alpen Optics in this video – precise, rugged, and perfectly tailored to your needs. Whether for hunting, sport shooting, or tactical use: the high-quality red dots and prism sight offer crystal-clear vision, rapid target acquisition, and reliable performance in any situation. Get firsthand insight into what makes these optics so special – clearly explained, practically demonstrated, and convincingly presented. Watch now and see for yourself why Alpen Optics is the perfect choice for your next setup!

Compact red dot sight with orange lens, function buttons, and rotary dial

The Coating

Another distinctive characteristic is the excellent multi-layer coating. It ensures clear viewing quality.

Absolutely weather- and shock-resistant

Even in adverse weather conditions, you keep your target firmly in sight with the high-quality ALPEN OPTICS prism sight. Heavy rain, snow, fog, or even a brief submersion in a stream do not affect the optics, which are waterproof up to 1 m (IPX7). The sturdy housing made of 6061 aluminium keeps liquids reliably away from the interior. For your perfect view even in extremely fluctuating temperatures, the prism sight is also filled with nitrogen. This prevents the lenses from fogging up from the inside. Of course, the ALPEN OPTICS Nevada LT Prism 3x24 is shock-proof up to 1,000 g Magnum calibre.

Rainy mountain landscape with dark clouds and a view into the valley – symbolizing tough outdoor weather conditions.
Three images of a stag in a snowy forest with different illuminated reticles, showing red dot sight options.

Innovative DynamicDot Technology

By using a motion sensor, the innovative DynamicDot Technology conserves the battery and makes this red dot sight quickly ready for operation. The illuminated reticle automatically turns on as soon as you move the rifle and bring it into position. If it remains motionless for 2 minutes, the illuminated reticle turns off again. Your Argus LT Red Dot Sight is thus quickly ready for use, saving not only power but also valuable time.

Robust housing

Our riflescopes are equipped with a robust housing made of T6 6061 aluminium. This material offers an excellent balance between durability and lightness, making it ideal for use in demanding environments. The T6 6061 aluminium housing is known for its high strength and resistance to external influences such as shocks, vibrations and extreme temperatures. This makes our riflescopes not only reliable, but also suitable for long-term use in various conditions

Stacked, polished metal plates – symbolizing rugged housing material for riflescopes or outdoor optics.
Three different red dot reticles: single dot, circle with notches, and circle with center dot – for red dot sight selection.

3 different reticles

Red dot 3 MOA, circle 32 MOA, dot is very free with 3 MOA for good precision, the 32 MOA circle helps with fast target acquisition.

Extensive accessories

Low mount and high mount for Picatinny, ACRO footprint for very flat mounting on a pistol.

Two compact red dot sights with orange lens, left without and right with high mounting base
ALPEN Deluxe Warranty badge with green emblem and mountain icon

Deluxe warranty

Good prospects for frequent observers – with ALPEN's extended guarantee – More information
Icon for multi-coated lenses by ALPEN OPTICS

Impressively bright images

Icon for waterproof design by ALPEN OPTICS

Watertight design

Thanks to the waterproof housing that prevents liquids from reaching the inside of the optics, you don’t need to worry about heavy rain or dropping the binoculars in a puddle.
Icon for splash protection by ALPEN OPTICS

Waterproof design

The housing features a splashproof design, which protects the optics during rain and adverse weather.
Icon for lightweight design by ALPEN OPTICS

Lightweight design

Easy to carry – the optics feature a lightweight design so that you can view animals and landscapes without carrying heavy equipment.
Icon for lightweight and durable magnesium housing by ALPEN OPTICS

Lightweight design

The optics are enclosed by a premium aluminium housing, which provides optimal protection and keeps the weight low.
Icon for recoil resistance (ShootProof) by ALPEN OPTICS

Premium recoil-resistant optics

This premium riflescope can withstand recoil forces of up to 1000 grams, equivalent to a Magnum caliber.
Icon for DynamicDot Technology by ALPEN OPTICS with automatic brightness adjustment of the illuminated dot

Innovative DynamicDot Technology

The motion sensor switches to standby mode after 2 minutes and immediately reactivates upon the slightest movement. After 24 hours in standby mode without any movement, it turns off completely.

Technical Data


Field of application
Drivehunting, stalking, sport shooting
Magnification 1 x
Reticle Red dot, circle, circle with red dot
Reticle adjustment / per click / 100 m MRAD 0,3
Red Dot Day & night hunting suitable, 10 levels
DynamicDot Technology Yes
Waterproof Yes, 1 m / 30 min
Adjustment range height adjustment clicks 88
Adjustment range side adjustment clickss 88
Temperature range -30° C ~ 50° C
Mounting footprint ACRO
Dimensions (L x W x H) 46 x 36 x 34 mm
Weight 110 g

Instruction manual

Download EN DE FR ES NL IT PL RU

Manual_ALP7012018LT_argus-lt-red-dot_en-de-fr-es-nl-it-pl_ALPEN_v102024a_web.pdf

Difference MOA and MRAD

The MOA and MRAD turrent systems refer to two different measurement systems: metric and imperial. The Metric and the Imperial. Thus, the imperial system uses MOA and inches, and the metric system uses MRAD and centimeters. Therefore, at some point the question arises which turrent system is the better one. First and foremost, it's a matter of habit and personal preference.

MOA

MOA icon (Minute of Angle) used by ALPEN OPTICS for point of impact adjustment

MOA stands for Minute Of Angle and corresponds to 1 / 60 of a degree. The system is suitable for those familiar with the imperial system, since it is calculated in inches. 1 MOA is equivalent to 1.047'' at 100 yd (2.9 cm at 100 m).

MRAD

MRAD icon (milliradian) used by ALPEN OPTICS for point of impact adjustment

MRAD stands for milliradian and is 1 / 1000 of a radian (angular measure). 0.1 MRAD / MIL is equivalent to 1 cm at 100 m and is suitable for those using the metric system. One advantage of the metric system is, that it is very easy to calculate. The shooting distance (unit meter) can be quickly converted into the unit of turret adjustment (centimeter). One click of an MRAD click adjustment thus corresponds to 3 cm (0.03 m) at a firing distance of 300 m. ALPEN Optics uses MRAD 0.1 click adjustments for all riflescopes.

Manufacturer: 
Bresser GmbH, Gutenbergstraße 2, 46414 Rhede

Contact: 
www.alpenoptics.de


Warning notes
  • RISK OF INJURY! Never look directly through the sight at the sun or near the sun. There is a risk of blinding yourself! Always ensure the weapon is unloaded and secured before working on the sight. Children should only use this device under supervision. Keep packaging materials (plastic bags, rubber bands, etc.) away from children. There is a SUFFOCATION RISK.
  • Fire/burn risk! Never expose the device – especially the lenses – to direct sunlight. The concentration of light rays can cause fires and/or burns.
  • Warning 1. Power supply via CR1632 batteries
  • Do not immerse the device in water. Do not expose the device to strong impacts, vibrations, dust, prolonged high temperatures, or extreme humidity. This can cause malfunctions, short circuits, damage to batteries and components.

Product information "ALPEN OPTICS Argus LT Red Dot Sight 1x20x18 closed"

Experience precision like never before with the ALPEN OPTICS Argus LT Red Dot Sight! Designed for harsh environments and equipped with a robust 6061 CNC Aluminium case, this innovative red dot sight enables fast and precise target acquisition for use with short or long guns. It can be easily mounted on all weapons with an RMR or Picatinny interface. The high-quality red dot sight is equipped with 3 illuminated reticles (3 MOA Dot, Circle, or Circle with Dot) and offers a battery life of up to 50,000 hours due to efficient battery use. You can adjust the reticle on the Argus LT red dot sight easily in 0.3 MRAD clicks, that is 3 cm at 100 m per click. The ALPEN OPTICS Argus LT Red Dot Sight 1x20x18 also impresses with its construction, as it is waterproof and shock-resistant.

The Coating
Another distinctive characteristic is the excellent multi-layer coating. It ensures clear viewing quality.

Innovative DynamicDot Technology
By using a motion sensor, the innovative DynamicDot Technology conserves the battery and makes this red dot sight quickly ready for operation. The illuminated reticle automatically turns on as soon as you move the rifle and bring it into position. If it remains motionless for 2 minutes, the illuminated reticle turns off again. Your Argus LT Red Dot Sight is thus quickly ready for use, saving not only power but also valuable time.

Absolutely weatherproof and shock-resistant
Even in adverse weather conditions, this high-quality ALPEN OPTICS Red Dot Sight keeps your target firmly in view. Heavy rain, snow, fog, or even a brief submersion in a stream do not affect the Argus LT, which is waterproof up to 1 m (IPX7). The sturdy yet lightweight aluminum housing keeps liquids reliably away from the interior. The red dot sight is also filled with nitrogen to ensure clear vision even at extremely fluctuating temperatures, so the lenses cannot fog up from the inside. As a true premium red dot sight, the ALPEN OPTICS Argus LT Red Dot Sight 1x20x18 is of course shock-resistant up to 1,000 g Magnum calibers when closed.
Adjustment range elevation (clicks): 88
Adjustment range windage (clicks): 88
Automatic brightness control: false
Batteries included: true
Batteries required: true
Body material: Aluminium
Bullet proof until: 1000g (Magnum)
Click value (mm/100m): 30
Colour: black
Colour of coating: red
Diopter setting: false
ED glass: false
Elevation adjustment (Click/100m): MRAD 0,3
Eyepieces for eyeglass wearers: false
Eye relief mm: infinite
Field of application [Rifle scope]: Driven hunt, Still hunting
Inert gas purged: true
LE Eyepieces: false
Lamp included: true
Lighting 5): Reticle / Digits red illuminated
Magnification: 1
Material: Aluminium, Plastic
Material Lenses: Optical glass
Mirror/Lens diam. (mm): 20
Near focus from 7) (m): 0.1
Net weight (without access.) (g): 110
PREMIUM Warranty 9): Yes
Parallax adjustment: true
Power supply unit included: false
Product series: ARGUS LT
Reticle: 3 MOA Dot, Circle and circle with dot
Reticle: false
Temperature range max. (°C): 50
Temperature range min. (°C): -30
Total height (mm): 34
Total length (mm): 46
Total width (mm): 36
Tripod adapter thread: false
Type of coating: Multi coated
Waterproof 8): true
Zerostop: false
Zoom function: false