We tried out numerous red dot sights on pistols, and found the 7 best Walther PDP red dot upgrades. These stand out for their durability, quick aiming, and long battery life.

Our selections were based on how well they fit the gun and the aiming experience they provided for both range shooting and everyday carry. We didn't judge the optics based on extreme durability tests.

Let's check them out:

Best Walther PDP Red Dot Sights

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Top 3 Options

Best Overall

Holosun 507C

holosun 507C
  • 2 + 32 MOA Ring
  • RMR footprint

Largest FOV

Trijicon SRO

trijicon sro
  • Faster dot acquisition
  • Top loading battery

Best Weatherproof

Holosun 509T

holosun 509t
  • Enclosed emitter
  • Side loading battery

These optics fit even better on the new version 2 slide with deeper slide cut that feature recoil lugs. To convert your version 1 PDP slide footprint to version 2 here

Holosun HE507C X2 - Best Overall

holosun 507k x2 on walther pdp 9mm

The Holosun 507C X2 2 MOA red dot sight is one of the best pistol red dot sights for the Walther PDP. People remember when red dot sights like this cost a whole month's paycheck. They purchased the Holosun 507C thinking its quality might be inferior. 

However, it's excellent for everyday carry and the shooting range. It serves as a solid alternative to the Trijicon RMR. Moreover, it fits seamlessly on the Walther PDP V1 and V2 and boasts remarkable features.

32 MOA Reticle - 32 MOA reticle increases shooter's chance to re-center the reticle even if it's slightly off center. Way better than a single dot

Battery Lasts A Long Time – The sight lasts over 100,000 hours, Solar Failsafe kicks in even if the battery fails to keep you in the fight longer

Super Strong Material That Lasts – The Holosun 507C is built with 7075 T6 aluminum, increased body strength and durability to handle the heaviest handgun caliber recoil impulses. 

Lockout Mode For CCW - The lockout mode eliminates accidental brightness adjustment due to inadvertent button press while conceal carrying

Motion Activated Reticle –  The Shake Awake technology activates the reticle upon motion and turns off when sitting at idle


  • Magnification: 1X
  • Reticle: 1 MOA, 32 MOA ring, or combined
  • Turret Value: 1 MOA / Click
  • Field of View: 0.63" X 0.91"
  • Construction: 7075 T6 aluminum IP67 rated
  • Dimension: 1.78"X1.15"X1.15"
  • Weight: 1.5 oz
  • Battery Life: 3 - 4 years


  • Much more affordable than Trijicon RMR
  • Uses RMR footprint
  • Long battery life + motion sensor aviation + solar power
  • No sight removal required for battery swap


  • Visible distracting logo
  • Open emitter design attracts debris
  • Solar power doesn't work indoor

Holosun 509T X2 - Best Weatherproof

walther pdp with holosun 509T

The new Holosun 509T X2 is a closed emitter red dot to prevent debris from entering the optic either in the field or carrying concealed under clothing

32 MOA Reticle + 2 MOA dot - Same reticle system as 507C, 508T and 507K (But without 32 MOA only mode)

Battery Lasts A Long Time – Just like the Holosun 507C recommended above. Long battery life + Solar Failsafe to keep the sighting system operational

Clamp Mount - Tighter and much more secure mount on the Walther PDP

Titanium Durability – Increased main body durability to handle heavy recoil impulses and rough slide racking against hard surfaces. 

Motion Activated Reticle –  Shake Awake technology just like Holosun 507C


  • Magnification - 1X
  • Reticle - 2 MOA + 32 MOA Ring, or 2 MOA dot
  • Adjustment - 1 MOA / Click
  • Brightness - 10 DL&2 NV (Features Lockout Mode)
  • Construction - Solid titanium body
  • Submersion - IP67
  • Window Size - 0.63" X 0.91"
  • Body Dimension - 1.6" X 1.16" X 1.13"
  • Weight - 1.72 oz
  • Battery - CR1632
  • Battery Life - 50,000 hours + Solar


  • Closed emitter design to keep debris away
  • Strong lens frame from top to bottom
  • Much tighter mount platform


  • Requires special mounting plate
  • Slightly blocky look

Trijicon SRO - Largest FOV

trijicon sro on walther pdp 9mm

Recommend using shorter RMR screws or send to CHWPS for slide modification

The Trijicon SRO has a big lens frame for better dot tracking than any other standard size red dot sights. The best part is that it uses the same RMR footprint without buying custom mounting plates.

Unobstructed Field of View - Bigger window than RMR, fast on target, fast follow up, Dot never leaves inside the window, Never lose the dot again!

Easier To Find The Dot - Slightly enlarged upper portion of the window significantly increase dot acquisition speed even if the grip angle was off 

Top Loading Battery Access - Improved user experience, access battery without removing the sight or re-zero the sight 

Lock-In & Lock Out Mode - Saves user chosen brightness setting indefinitely, Ideal for target shooting & competition


  • Magnification: 1X
  • Reticle: 5 MOA option is the best
  • Turret Value: 1 MOA / Click
  • Field of View: Round 0.98" X 0.89"
  • Construction: 7075 T6 aluminum
  • Dimension: 2.2"X1.3"X1.4"
  • Weight: 1.6 oz
  • Battery Life: 3 - 4 years


  • Very large FOV for dot tracking
  • No zeroing or sight removal required for battery swap like the 507C
  • Same RMR footprint
  • 3 dot sizes offered, 1 MOA, 2.5 MOA and 5 MOA
  • Lockout mode


  • Not the same lens frame durability as RMR
  • A bit pricey

Leupold DeltaPoint Pro - Best Durability

deltapoint pro on walther pdp 9mm

The Leupold DeltaPoint Pro for the Walther PDP is good for everyday carry and the shooting range. You can use it instead of the Trijicon RMR or Holosun 507C.

Optimized For Competition - Large FOV similar to the Trijicon SRO for fast target acquisition, helps shooter get on target fast and knock down targets to score big!

6 MOA Available - 6 MOA model offers greater pistol sight picture acquisition speed & dot clarity than a smaller dot (Compare 6 MOA and 3 MOA)

Protected Lens Hood - Diverts direct impact stress away from the main body and lens frame for increased durability

Top Loading Battery Access - Improved user experience, eliminated the need to remove sight for battery swap, retain zero without re-adjusting

Recoil proof- Increased durability & accuracy, full confidence when mounted on shotguns, handguns and rifles


  • Magnification: 1X
  • Objective Lens: 1.01" x 0.68"
  • Eye Relief: Unlimited
  • Reticle Type: 2.5 or 6.5 MOA
  • Turret : 1 MOA / Click
  • Dimension: 1.8" X 1.3" X 1.3"
  • Weight: 1.9 oz
  • Battery: CR2032
  • Battery Life: 1600 hours


  • Big FOV
  • Extra lens hood protection
  • Super small and lightweight
  • Various mounts available


  • Lower battery life
  • Finger blocks the reticle when adjusting brightness

Trijicon RMR HD - Upgraded RMR 

rmr hd

The brand new 2023 Trijicon RMR HD offers a larger window close to the Trijicon SRO with a top battery loading design this time, and the window is slightly elevated for better sight alignment on low tang grip guns.

The optic features a forward light sensor that automatically adjust the reticle brightness based on the target's lighting information.

Under significant light condition change either with pistol light use or bright sunlight, the 3.25 MOA or the 55 MOA ring reticle will be at the perfect dot brightness for target shooting and real world duty use.

Since the mounting footprint on the PDP sits further back, the RMR HD's overhang design will not interfere with the ejection port.

For users that wants to bridge the gap between the RMR durability and SRO's large window, the RMR HD is for you.


  • Magnification: 1X
  • Objective Lens: 0.67" x 0.89"
  • Eye Relief: Unlimited
  • Reticle Type: 3.25 or 1 MOA + 55 MOA ring
  • Turret : 1 MOA / Click
  • Dimension: 2.15" X 1.27" X 1.19"
  • Weight: 1.69 oz
  • Battery: CR2032
  • Battery Life: 3+ years
pdp eotech eflx

The Eotech EFLX red dot sight is sharp and crisp. It has the same mounting footprint as the Leupold DeltaPoint pro and it features EOTech EXPS alike field of view.

HWS Inspired - Its tough aluminum case is as strong as other sights we've suggested, and its field of view matches the EOTECH HWS, offering either 3 or 6 MOA dots.

Large Adjustment Buttons - Works for users with man size fingers or when wearing thick gloves in the cold

Better Night Vision Performance - Impressive light transmission performance that is on par with the Delta Point Pro.


  • Magnification: 1X
  • Reticle: 3 or 6 MOA
  • Turret Value: 1 MOA / Click
  • Construction: Aircraft aluminum 
  • Dimension: 1.9" X 1.2" X 1"
  • Weight: 1.4 oz
  • Battery: CR2032
  • Battery Life: 20,000 hours

Vortex Venom - Best For Beginners

vortex venom side view right

The Vortex Venom is a small, light, and budget-friendly sight for the Walther PDP. But, you might need to adjust it a bit during installation.

For those with astigmatism, we suggest using a 6 MOA dot size on the Walther PDP. It provides a bigger and rounder dot image.

Super Strong Low Profile Sight  – Weighing only 1.1 oz built with rugged aluminum housing, enlarged lens window with multi-coated material to increase light transmission

Top Loading Battery - If need to, switch the battery from the top without sight removal

Large Window –  Parallax-free red dot acquires target fast and better follow up red tracking


  • Magnification: 1X
  • Window Size: 0.58" x 0.77"
  • Eye Relief: Unlimited
  • Reticle Type: 3 or 6 MOA
  • Turret : 1 MOA / Click
  • Dimension: 1.6" X 0.98" X 0.95"
  • Weight: 1.0 oz
  • Battery: CR2032
  • Battery Life: 3000 hours


  • Affordable for beginners
  • Very thin lens frame for minimized POV obstruction
  • Super small and lightweight


  • Much smaller window than others recommended
  • Much shorter battery life if left it on