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UTG® ACCU-SYNC® 2521R Dot Sight, Red 3 MOA Single Dot, for Mini ACOG - OP-DS2521R

UTG® ACCU-SYNC® 2521R Dot Sight, Red 3 MOA Single Dot, for Mini ACOG

ACCU-SYNC dot sights

UTG® ACCU-SYNC® dot sights come in a compact and subcompact size and feature a red illuminated 3 MOA dot with 8 manually adjusted brightness intensity settings to choose from. Illumination memory conveniently gets users right back to the last brightness setting used upon activation. Fully sealed, ACCU-SYNC® dot sights are IPX7 waterproof rated and constructed from matte black anodized 6061-T6 aluminum. Optimized for low power consumption and powered by a single CR2032 battery, a 30,000+ hour battery life (at middle brightness) comes standard.

The mounting base uses the common mini ACOG® footprint and is configured for a lower 1/3 co-witness out of the box. Removing the included riser drops the height down to that of a low mount providing users two commonly used height profiles for different firearm applications. In addition, the base features squared recoil stops and our QR (quick release) mount, making for a quick installation and removal, reliable return to zero, and is compatible with Picatinny rails with widths that may even be out of spec. Tool-free tension adjustment is locked in place via a gear and spring-loaded locking lever interface, allowing users to set it once and forget it.


  • Precision Machined from 6061-T6 Aluminum and Finished in a Matte Black Anodization
  • Wide Field of View 20mm Lens Diameter
  • Impact Resistant Tempered Glass Lens
  • 3 MOA Red Dot with 8 Brightness Settings
  • 30,000+ Hours Battery Life at Middle Brightness Setting
  • Snag-free Flush Turrets with Crisp 1 MOA Per Click Adjustment at 100 Yards
  • IPX7 Waterproof Rated
  • Low Profile Quick Release (QR) Mini ACOG® Mount with Lower 1/3 Co-witness Riser Included
  • NOTE: We recommend to tighten the M5 screw with torque value of about 25 inch-lb.
Battery Life30,000 hrs
Battery LoadingRight Side Turret
Battery TypeCR2032 3V
Brightness Mode(s)Manual
Brightness Settings8
Click Value1 MOA
Compatible withPicatinny
Eye ReliefInfinity
Field of View (Linear FOV)3.77 ft @ 100 yds
IP RatingIPX7
Illumination Toggle Type+/- Digital
Lens MaterialGlass
Magnification1X
Materials6061-T6 Aluminum
Optic FootprintFor Mini ACOG®
ParallaxInfinity
Quick-detachableYes
Required Picatinny Space5 slots
ReticleSingle Dot
Reticle ColorRed
Surface FinishAnodized
Torque Specification15 in-lbs (2x T25 torx riser screws)
Weight5.5 oz (154 g) - low mount| 5.9 oz (167 g) - with high riser
185.95 € 185.95 € (Tax included) 267.99 €

  • Brand
  • Red Dot MOA
Terms and Conditions
30-day money-back guarantee
Shipping: 2-3 Business Days
Brand: UTG Leapers
Red Dot MOA: 3 MOA