GOWUTAR GP-3 Large Window Red Dot Sight for RMSc Footprint | 3 MOA Astigmatism Friendly Pistol Optic
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Improves control and visual tracking on subcompact pistol
Struggling with a tiny window on your slimline carry pistol? Upgrade to a competition-style large window optic with a crisp, easy-to-track dot for faster target acquisition, smoother follow-up shots, and a more confident shooting experience!
A Bigger Window for Slimline Pistols
A compact pistol should not leave you searching for the dot. The GP-3 gives compatible RMSc setups a 25.4 × 19.8 mm viewing window, making it easier to pick up the reticle as you present the pistol and keep it in view during follow-up shots.
At 41 g (1.45 oz), the optic balances that larger sight picture with a size suited to everyday carry. It is equally at home on a range or competition setup where quick visual tracking matters.
3 MOA Crisp Red Dot & Astigmatism-Friendly Aspheric Lens
The 3 MOA red dot offers a practical balance of visibility and precision. Its aspheric lens is designed to reduce visible distortion across the viewing area, helping you maintain a clear view of the target.
If traditional dots appear blurred or starburst-shaped to you, the GP-3’s lens may be worth considering. Astigmatism affects each shooter differently, so the dot’s appearance is best judged with your own eyes.
Prefer a green aiming point? Explore the GP-3 Green Dot Sight with the same large-window and aspheric Lens design.
Industry Standard RMSc / K Series Footprint
Compatible with Shield RMS/RMSc & Holosun 407K/507K Footprint, designed for compact & sub-compact pistols.
Motion Activation Technology
Low-height Co-witness Design
Integrated co-witness design gives you added certainty when taking aim, you can co-witness the regular sights with the red dot mounted.
Protective Button Guard
The button shield prevents accidental presses, so you can operate with confidence without unintended adjustments.
Side-loading Battery Compartment
Side-loading battery design allows quick battery replacement without removing the optic, and keeps your zero perfectly intact.
Rugged Construction
The GP-3 uses a 7075-T6 aluminum housing and is listed with IPX7 water resistance and a 1500G shock rating. It is designed to stand up to regular carry, range sessions, and changing weather while maintaining a dependable aiming point.
Compatibility
| Glock | 43X mos, 48 mos |
| Canik | Mete MC9 / SF / SFT / SFT pro / SFx, TP9 Elite SC, TP9 SFx, SFx rival |
| Sig Sauer | P322, P365X, P365XL, P365-380, P365-xmacro, P365-AXG legion |
| Smith & Wesson | M&P 22 magnum, PC M&P shield M2.0 OR, M&P Shield plus OR, Equalizer |
| Springfield Armory | Hellcat Pro / OSP / RDP, XD-S mod2 OSP, 1911 ds prodigy |
| Taurus | TX22 toro, TX22 compact, GX4 toro, GX4XL, GX4 carry toro, defender 856 toro, 605 toro, judge toro, magnum judge toro |
| Walther | Q4 sf or, Q5 match sf, wmp, PDP compact, PDP pro sd compact |
| CZ-USA | P-10 S/C/F OR, Shadow 2 (compact) OR |
| Arex Defense | Delta Gen.2, Zero 1 tactical |
| Beretta | APX A1 Carry, 80X Cheetah |
| SAR USA | SAR9 Subcompact gen2, SAR9 (compact) gen3, SAR9 Sport Gen3, SAR9 socom |
| Other | IWI US Masada slim, Kimber R7 mako OR, Ruger max9, Bersa BP9CC OR, other pistols that with optic-ready RMSc cut slide ...... |
Specifications
| Material | 7075-T6 Aircraft Grade Aluminum |
| Body Coating | Hardcoat Anodized Finish |
| Mount | RMSc Footprint |
| Lens Type | Aspheric Lens |
| Lens Size | 25.4 × 19.8 mm / 1.0 × 0.78 in |
| Magnification | 1X |
| W/E Range | ±45 MOA (total 90 MOA) |
| Brightness Setting | 10 levels (8 Daytime/2 NV) |
| Eye Relief | Unlimited |
| Waterproof | IPX7, up to 1 meter |
| Shockproof | 1500G |
| Battery Type | CR1632 3V |
| Battery Life | 160 - 40,000h |
| Net Weight | 41g / 1.45oz |
Dimensions
Package List
1 x GP-3 Large Window Micro Red Dot Sight
1 x CR1632 Battery
4 x Screw Sets
1 x Screwdriver
1 x Cleaning Cloth
1 x User Manual
FAQ
Is the GP-3 designed for everyday carry?
Yes. At 41 g (1.45 oz), the GP-3 is lightweight enough for compatible compact and slimline pistol setups while offering a larger 25.4 × 19.8 mm viewing window. Please note that the larger window may not fit some holsters, so check holster compatibility before purchasing.
What is the advantage of the larger window?
The larger window gives your eye more room to find the dot when presenting the pistol. It also makes the reticle easier to track during follow-up shots and target transitions.
Will changing the battery affect my zero?
No. The side-loading battery compartment lets you replace the CR1632 battery without removing the optic, so you do not need to disturb its mounting position.
Is the GP-3 suitable for shooters with astigmatism?
Its astigmatism friendly aspheric lens is designed for a clear sight picture, but no optic can guarantee a perfectly round dot for every shooter. Perceived dot shape depends on your vision.
Is the GP-3 waterproof?
Yes. The GP-3 has an IPX7 water-resistance rating and is designed for use in rain and wet outdoor conditions. Close the battery tray securely before use.
