4 Best Shadow System MR920 Red Dot Sights

Looking to pair a red dot on your new Shadow System pistol purchase? Out of all the products available, here are the 4 best red dot sights for Shadow System MR920 & other similar models.

We ranked these pistol red dot sights based on their reticle, durability, cost and some aesthetics considerations.

Our Best MR920 Optic Picks

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Trijicon RMR RM07 - Best Overall

trijicon rmr on mr920

When To Pick RMR Over Holosun 507C ? - Holosun 507C is great, but nothing beats an American made product. The RMR is much stronger and slightly more compact for conceal carry.

RMR has everything a rugged optic should be. In many ways the Holosun 507C has many user friendly features, but the RMR is the original battle proven micro red dot serious professionals use!

The type 2 models are built specifically for handling G force on handgun slides with a much tighter battery grip so recoil doesn't loosen the electrical connection.


  • Battle proven durability
  • Better battery grip tightness
  • Co witness with iron sights


  • Open emitter attracts debris easily
  • Sight removal required for battery swap

Holosun 507C X2 - Best For The Money

best red dot sight for MR920

Why people love Holosun 507C X2 - The Holosun HE507C X2 does the same thing as the original model but better. It's an affordable Trijicon RMR that almost works like the RMR without spending over $350 or $600.

Improved Sight Alignment - Slightly larger window than the RMR, aim with both eyes open on the Shadow System MR920 just like other Glock MOS pistols.

Uses RMR Footprint - Shadow System MR920 slides are made for the RMR / 507C footprint right out of the box

Battery Almost Doesn't Run Out - 50,000 hours of battery life plus solar panel backup power. This thing last so long you might forget it has a battery in it.

Solar Power BackUp - Functions like a fiber optic under any light exposure

Holosun 507c on glock pistol USPSA

Side Loading Battery - No sight removal required to swap battery. Very user friendly

  • Magnification: 1x
  • Dot Color: Bright Red
  • Dot Size: 2 MOA + 32 MOA Ring
  • Eye Relief: Unlimited
  • Adjustment Graduation: 1 MOA / click
  • Parallax Setting: Parallax Free
  • Length: 1.78 inches
  • Weight: 1.5 oz

Read Holosun 507C Review

Holosun HS507C-X2 Reflex Red Dot Sight, 2 MOA Dot & 32MOA Circle Reticle, Black, HS507C-X2


  • Similar durability as Trijicon RMR
  • Side battery access
  • Much more affordable
  • Solar panel backup built in


  • Open emitter attracts dirt easily in CCW holster under clothing
  • Trijicon SRO - Largest FOV

    trijicon sro on mr920

    Why we picked this one - The SRO is the evolved version of the RMR with a larger window (However, not for duty use)

    On Target Every Time - Large circular window helps shooter acquire the dot every time even with slightly off alignment or imperfect draw presentation 

    Easier Battery Access - Swap battery right from the top without sight removal like the Leupold DeltaPoint to reduce long term wear on the mounting screws and threads

    trijicon sro parallax test

    Larger Reticle Options - Available for 1 MOA, 2.5 MOA, and 5 MOA. 5 MOA works the best for shooters with astigmatism.

    Same RMR mounting footprint - Same mounting footprint as RMR and Holosun 507C (No special plate needed)

    Reticle Lockout Mode - Saves reticle brightness setting to prevent accidental adjustments.

    • Magnification: 1x
    • Dot Color: Bright Red
    • Dot Size: 1, 2.5 & 5 MOA - 5 MOA best dot clarity & fast sight picture acquisition
    • Eye Relief: Unlimited
    • Adjustment Graduation: 1 MOA
    • Parallax Setting: Parallax Free
    • Length: 1.9 inches
    • Weight: 1.1 oz

    Check Out SRO Review

    Trijicon SRO Adjustable LED Red Dot Sight, 1.0 MOA Dot Reticle, 2500001


    • Increased FOV for dot tracking
    • Lockout mode built in
    • Same RMR footprint
    • Top battery access


    • Not for CCW
    • 6 MOA or 8 MOA not offered currently

    Leupold DeltaPoint Pro - Best Glass Quality

    deltapoint pro on shadow system MR920

    Why we pick this one - The DeltaPoint Pro 6 MOA is a new large size MOA model finally introduced to the market. The field of view is larger than RMR and similar to the SRO. This old school red dot is one of the top choices.

    leupold deltapoint pro iso view

    Extra Housing Protection - Secondary lens hood diverts physical impact completely away from the main glass frame to prevent shattering

    Built In Motion Sensor - Saves battery juice when sitting at rest. It activates when sensing motion when the user picks it up.

    Easier Battery Access - Swap battery right from the top like the Trijicon SRO without sight removal! This is a top rated feature many good red dot sights have 

    Also Use For Duty Carry - Much tougher external body construction compared to similar size optics for conceal carry 


    • Magnification: 1X 
    • Sight Window: 25.7mm X 17.5mm
    • Optic Dimension: 46.1mm X 33.2mm X 33.0mm
    • MOA Adjustment: 1 MOA / Click
    • Dot Size: 2.5 MOA6 MOA (Sold separately)
    • Operating Temperature Range: -20F to 120F
    • Battery: 1 CR2032 (Top loading)
    • Weight: 1.9 oz

    Check Out DPP Review


    • As large as Trijicon SRO window
    • Top loading battery door
    • Additional hood protection


    • Somehow the battery life isn't as long as others using the same CR2032 battery