Primary Arms SLX-MD-20 Advanced Push Button Micro Red Dot Gen II


  • Tough, Lightweight, Advanced Red Dot
  • 50,000 Hours Battery Life
  • AutoLive Motion Sensing Illumination
  • Crisp 2 MOA Dot from NV Compatible to Daylight Bright

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Primary Arms SLX-MD-20 Advanced Push Button Micro Red Dot Gen II Product Details

SLX-MD-20 is the new and improved version of the venerable MD-ADS (the optic that built the Primary Arms red dot reputation). SLX-MD-20 keeps everything that made MD-ADS great and takes it to the next level, featuring AutoLive motion activated illumination, truly daylight bright illumination on the highest settings, and night vision compatibility on the lowest settings. The CR2032 battery installs via a low profile compartment on the right side, so the push button brightness controls can be mounted up top for easy access with either hand. Battery life comes in at 50,000 hours on a medium setting. MD-20 is a proven performer that is known for its sharp and crisp 2 MOA dot, it’s light weight under 4 ounces, and its rugged toughness. In case something does go wrong, the Primary Arms Lifetime Warranty has it all covered.


SLX-MD-20 includes a low profile 1913 MIL STD Picatinny mount that works great for shotguns, AKs, and other long guns that place your eyes level with the receiver rail. For ARs and other platforms that place the stock in line with the receiver rail, PA also makes high quality riser mounts. The SLX-MD-20 scope body also fits the industry micro dot standard (also known as the Aimpoint T1/T2 standard), so you can use a huge variety of mounts from LaRue, American Defense MFG, Scalarworks, and more.


  • AutoLive Motion Activated Illumination
  • 50,000-hour Battery Life (Medium Setting)
  • Ambidextrous Top-Mounted Brightness Buttons
  • Weight: 3.8 Ounces With Battery
  • 14 Brightness Settings: 12 Daylight & 2 NV Compatible
  • 2 MOA Red Dot Reticle
  • Parallax-free & Unlimited Eye Relief
  • CR2032 Battery Can Be Changed Without Removing Optic From The Firearm
  • Backed by Primary Arms Lifetime Warranty
  • Included Low-Profile 1913 MIL STD Picatinny Mount


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