5 Best Shadow Systems MR920 Red Dot Sights

Out of all the products available, here are the 5 best Shadow Systems MR920 red dot sights including something new to the market.

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.

Pros

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

Cons

  • 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 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

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

  • Magnification: 1x
  • Dot Color: Bright Red
  • Material: 7075 T6
  • 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

Pros

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

Cons

  • 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 for better dot tracking performance.

    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

    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
    • Material: 7075 T6
    • 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

    Pros

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

    Cons

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

    Leupold DeltaPoint Pro - Best Window Size

    Why we pick this one - The DeltaPoint Pro 6 MOA perfect fits the pre-milled footprint on the MR920 slide. The DPP optic now offers a large size 6 MOA model for pistol shooters.

    The field of view is larger than RMR and similar to the SRO. This old school red dot is one of the top choices.

    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 

    Specs:

    • Magnification: 1X 
    • Sight Window: 25.7mm X 17.5mm
    • Material: 7075 T6
    • 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

    Pros

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

    Cons

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

    Swampfox Justice - Tapered Large FOV

    Why we picked this one - The Swampfox Justice uses the same RMR footprint but with a larger than RMR field of view. It's an unique FOV profile that deserves a try!

    Shake Awake - It's the same motion sensor technology as the Holosun 507C

    Track The Dot Better - The FOV gets larger on top of the optic frame to create more window room to find the dot

    Top Loading Battery - Same user friendly design as the Trijicon SRO

    Specs:

    • Magnification: 1X 
    • Sight Window: 1 mm X 27 mm
    • Material: 7075 T6
    • Optic Dimension: 46.1mm X 33.2mm X 33.0mm
    • MOA Adjustment: 1 MOA / Click
    • Dot Size: 3 MOA
    • Battery: 1 CR1632 (Top loading)
    • Weight: 1 oz

    Pros

    • Unique tapered FOV
    • Fits ALS holster
    • Top loading battery door
    • Red or green reticles

    Cons

    • Low battery life compared to others

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