5 Best 3x Prism Scopes

Outdoor Moran is reader-supported. When you buy through links on our site, we may earn an affiliate commission. Learn More

Combining the benefits of fixed magnification, etched reticles, and compact designs, the best 3x Prism Scopes provide an optimal balance of speed and accuracy for both close-quarters engagements and medium-range targets.

Designed to deliver crisp, clear images with reliable performance in various conditions, they excel in durability, light transmission, and recoil resistance.

Whether you’re a tactical shooter, hunter, or recreational marksman, the best 3x prism scopes offer unmatched versatility, making them a valuable addition to your firearm setup.

Best 3x Prism Scopes

1) Primary Arms SLx 3x32mm Prism Scope

Primary Arms SLx 3x32

 

The Primary Arms SLx 3x32mm Prism Scope is the best 3x prism scope. It features an illuminated reticle that allows for fast, both-eyes-open shooting, a Ruggedized Mount, a 10.3mm exit pupil, ample eye relief, and waterproof, fog-resistant, and shockproof performance, among other features.

Developed through rigorous field testing, this compact yet versatile optic is designed to perform in a variety of environments, making it an excellent choice for shooters who demand durability and precision.

At the heart of this scope is the advanced ACSS 5.56 CQB-M2 reticle. This reticle is etched into the glass and offers a combination of ballistic drop compensation (BDC), ranging, wind leads, and moving target leads for accurate shooting out to 600 yards.

The outer horseshoe of the reticle is designed for close-quarters engagements, allowing for rapid target acquisition with both eyes open. The reticle’s fully illuminated design ensures visibility even in bright daylight, while the 11 brightness settings provide flexibility for low-light conditions. Remarkably, the etched reticle functions without batteries, making it a reliable companion in critical situations.

The Gen III 3X Prism Scope is built for rugged use. Its new ruggedized mount features upgraded materials and design, delivering exceptional clamping power and recoil resistance. Integrated recoil lugs and large-diameter cross bolts enhance the mounting system’s durability, ensuring the scope stays firmly in place even under heavy recoil.

Additionally, the included AR-height riser caters perfectly to AR-15s and AR-10s but can be removed for compatibility with carry handle mounts or AK platforms, showcasing its adaptability.

This optic boasts a generous 10.3mm exit pupil and a 31.5 ft field of view at 100 yards, allowing shooters to track moving targets with ease. With a forgiving eye box and 2.7″ to 3.0″ of eye relief, it provides a comfortable shooting experience.

Built to withstand the elements, the scope is waterproof, fog-resistant, and shockproof, ensuring reliability in demanding conditions. A hard coat anodized finish adds an extra layer of protection to this robust piece of equipment.

 

 

 

Pros

  • Versatile Reticle: Combines BDC, ranging, wind leads, and moving target leads for accuracy up to 600 yards.
  • Illumination Options: Fully illuminated reticle with 11 brightness settings for diverse lighting conditions.
  • Durable Construction: Waterproof, fog-resistant, shockproof, and equipped with a ruggedized mount for exceptional clamping power.
  • Adaptability: Compatible with AR-height risers, carry handle mounts, and AK platforms.
  • Ease of Use: Generous field of view, forgiving eye box, and tactile 1/4 MOA turret clicks for easy adjustments.
  • Lifetime Warranty: Backed by Primary Arms’ comprehensive lifetime warranty.

Cons

  • Non-Night Vision Compatible: Illumination is not compatible with night vision devices.

 

2) Monstrum S330P 3x Prism Scope

Monstrum S330P 3x Prism Scope

The Monstrum S330P 3x Prism Scope is one of the Best 3x Prism Scopes, it is a robust and versatile optic designed to cater to shooters seeking rapid target acquisition at close to mid-range distances. This compact scope combines the durability and precision of a prism optical system with modern features like shake-awake motion sensing, making it a valuable tool for tactical and recreational shooting.

At its core, the Monstrum S330P utilizes a 3x magnification glass prism optical system, offering better optical clarity and reduced distortion compared to traditional red dot sights. Its etched glass reticle provides a crisp sight picture and is illuminated in both red and green with five adjustable brightness levels for versatility in varying lighting conditions. Unlike traditional red dots, the reticle remains visible without battery power, ensuring functionality in all scenarios.

The scope’s DX1 reticle enhances usability, especially for shooters with astigmatism, as it reduces eye strain and provides a clear aiming point. The shake-awake motion-sensing technology adds another layer of convenience by conserving battery life; the scope shuts off after 10 minutes of inactivity and reactivates instantly when movement is detected. These features make the Monstrum S330P ideal for fast-paced shooting situations.

Built to endure tough conditions, the S330P features a hard-anodized aluminum finish for enhanced durability and a sleek appearance. The multi-coated lens improves light transmission, color fidelity, and glare reduction, ensuring a clear view in any environment.

Its adjustable diopter allows users to fine-tune the focus for optimal clarity, while the quick-detach thumbscrew mount simplifies installation and removal, making it easy to switch between firearms or optics setups.

 

 

 

Pros

  • Prism Optics System: 3x magnification with reduced distortion for improved accuracy.
  • Etched Glass Reticle: Reticle illuminates in red and green, usable without battery power.
  • Shake-Awake Technology: Automatically powers down after 10 minutes of inactivity and reactivates upon movement.
  • Multi-Coated Lens: Enhances light transmission and offers scratch protection.
  • Durable Design: Hard-anodized aluminum finish for rugged durability.
  • Adjustable Diopter: Assists with reticle and sight picture focus.
  • Quick-Detach Mount: Thumbscrew mount for easy installation and removal.

Cons

  • Reticle illumination is not compatible with night vision devices.

 

3) Vortex Spitfire HD Gen II 3x Prism Scope

Vortex Spitfire HD Gen II 3x Prism Scope

The Vortex Spitfire HD Gen II 3x Prism Scope offers a blend of cutting-edge technology, rugged durability, and exceptional clarity. Designed for shooters seeking rapid target acquisition and dependable performance in various conditions, this prism scope is a top contender for short to mid-range engagements.

At the heart of the Spitfire HD Gen II is its HD Optical System, which uses select glass elements to deliver unmatched resolution, edge-to-edge sharpness, and vibrant color fidelity. Fully multi-coated lenses enhance light transmission while reducing glare, making this optic a strong performer even in low-light scenarios. This optical excellence ensures precise aiming and a crystal-clear view of the field, giving users an edge in critical moments.

The etched AR-BDC4 reticle offers holdovers out to an impressive 650 yards, making it versatile for both close-quarters combat and longer-distance shots. Its red illumination is powered by an enclosed LED emitter, offering 12 brightness levels, including ultra-low settings compatible with night vision equipment. Even without illumination, the reticle remains highly functional, thanks to the etched design that eliminates reliance on batteries.

Engineered to endure harsh environments, the Spitfire HD Gen II is nitrogen-purged, O-ring sealed, and built to be waterproof, fogproof, and shockproof. Whether you’re facing rain, extreme temperatures, or heavy recoil, this scope is ready to perform. The streamlined design, with flush-mounted turrets and a compact profile, minimizes weight and enhances handling, allowing for quick transitions.

The Spitfire HD Gen II also offers flexible mounting options, supporting lower 1/3 co-witness and low mounts, making it adaptable to various shooting setups. With a field of view of 37.9 feet at 100 yards and a forgiving eye relief of 2.6 inches, the Vortex Spitfire HD Gen II 3x Prism Scope is one of the Best 3x Prism Scopes.

 

 

 

Pros

  • HD Optical System: Delivers exceptional resolution, color fidelity, and edge-to-edge sharpness.
  • Fully Multi-Coated Lenses: Improves light transmission and low-light performance.
  • AR-BDC4 Reticle: Designed for holdovers up to 650 yards with 12 brightness settings.
  • Durable Construction: Waterproof, fogproof, and shockproof for reliable performance in any environment.
  • Compact and Lightweight: Streamlined design with flush turrets for rapid transitions.
  • Versatile Mounting Options: Supports lower 1/3 co-witness and low mounts.

Cons

  • Eye relief of 2.6 inches may require careful positioning for some users

 

4) AT3 Tactical 3x Prism Scope

AT3 Tactical 3x Prism Scope

The AT3 Tactical 3x Prism Scope is a top choice for shooters seeking precision and versatility in a compact, rugged optic. Designed to excel from close quarters to medium-range engagements, this scope is packed with features that enhance accuracy, usability, and durability, making it a standout among the best 3x prism scopes.

Equipped with a built-in BDC reticle, the AT3 Tactical 3x Prism Scope offers precise holdovers for the most common 55 to 62-grain .223/5.56 cartridges, allowing accurate shots out to 600 yards. The illuminated reticle features 10 brightness settings, ensuring clarity in various lighting conditions, from bright daylight to low-light environments like dawn and dusk. Additionally, the 3x magnification provides a clear, enhanced view of your target, far surpassing the capabilities of iron sights or traditional red dots.

With a 38-foot field of view at 100 yards, this optic offers a broader perspective than many competing 3x scopes, making it easier to track moving targets and stay aware of your surroundings. Its 2.75-inch eye relief and recessed housing make finding the eyebox intuitive, providing comfort and speed in acquiring your sight picture.

The AT3 Tactical 3x Prism Scope is built to endure harsh conditions. Its 6061 aluminum housing is both waterproof and fogproof, ensuring reliability in rain, humidity, and a wide range of temperatures. Flip-up lens caps protect the objective and ocular lenses, while tethered adjustment caps prevent loss during rugged use.

One of the standout features of this scope is the integrated Picatinny rail on top, which allows for the addition of a micro red dot sight. This provides lightning-fast target acquisition for close-range shots, making the scope incredibly versatile for multiple shooting scenarios. The scope height also supports the retention of backup iron sights, giving shooters additional flexibility.

Setting up the AT3 Tactical 3x Prism Scope is a breeze with its simple Picatinny mount that securely locks onto flat-top AR-platform receivers. The digital brightness controls make adjusting reticle illumination seamless, allowing shooters to quickly adapt to changing light conditions.

 

 

 

Pros

  • BDC Reticle: Reliable holdovers for .223/5.56 out to 600 yards.
  • Illumination Settings: 10 brightness levels for low-light adaptability.
  • Wide Field of View: 38 feet at 100 yards for situational awareness.
  • Red Dot Compatibility: Integrated Picatinny rail for micro red dot attachment.
  • Durable Construction: 6061 aluminum housing is waterproof, fogproof, and impact-resistant.
  • Flip-Up Lens Caps: Protect the lenses from the elements.
  • Quick Mounting: Simple Picatinny mount for secure installation.
  • Multi-Coated Optics: Enhanced light transmission and clarity.

Cons

  • Battery life of 200 hours could be extended

 

5) TRYBE Optics 3x32mm Compact Prism Scope

TRYBE Optics 3x32mm Compact Prism Scope

 

The TRYBE Optics 3x32mm Compact Prism Scope offers an exceptional combination of rugged design, tactical flexibility, and premium performance. Engineered for the AR-15 platform and similar rifles, this optic is perfect for shooters seeking rapid target acquisition and precision in close to medium-range engagements. Its durable construction and thoughtful features make it a leading choice among the best 3x prism scopes.

Constructed with 6061-T6 aluminum and finished with a hard coat anodizing, the TRYBE 3x32mm Compact Prism Scope is built to endure extreme conditions. Rated IP67 waterproof and dustproof, it is fully nitrogen-purged to prevent internal fogging, making it a reliable companion in harsh weather and challenging environments. Designed to handle extreme recoil, it maintains zero even under rigorous use, ensuring consistent performance shot after shot.

This optic features a removable top-mounted 1913 MIL-STD Picatinny rail, ideal for attaching a reflex sight or other accessories, enhancing versatility for different shooting scenarios. The removable base and ACOG-compatible footprint allow for easy customization and compatibility with a variety of mounts, including standard carry handle mounts.

The 4 MOA etched dot reticle is designed to provide a sharp, clear aiming point, reducing distortion and astigmatism. This illuminated reticle boasts 11 brightness settings, making it usable in bright sunlight as well as low-light conditions. With a battery life of up to 3,000 hours on a single CR2032 battery, you can trust the optic to perform through extended outings.

Its 3x magnification and 32mm objective lens deliver a wide field of view of 31.5 feet at 100 yards, giving you a clear picture of your surroundings while staying focused on your target. The lenses are optimized for maximum light transmission, ensuring sharp images even in challenging lighting conditions.

Windage and elevation adjustments are precise and stay locked in place until intentionally moved, offering dependable accuracy. The optic’s thoughtful design allows for easy removal and reattachment without losing zero. Anti-reflection device (ARD) compatibility adds another layer of utility, reducing glare and enhancing stealth in bright conditions.

 

 

Pros

  • Durable Construction: 6061-T6 aluminum with hard coat anodizing; waterproof, fogproof, and dustproof.
  • Versatile Mounting: ACOG-compatible footprint with removable base and top-mounted Picatinny rail.
  • Illuminated Reticle: 4 MOA etched dot with 11 brightness settings for diverse lighting conditions.
  • Wide Field of View: 31.5 ft at 100 yards for enhanced situational awareness.
  • Battery Life: Up to 3,000 hours for extended reliability.
  • Recoil Resistance: Designed to handle extreme recoil while maintaining zero.

Cons

  • Slightly narrower field of view compared to some competitors.

Next Reads

 

Factors to Consider when Choosing the Best 3x Prism Scopes

Here are the most important considerations:

Optical Clarity and Reticle Design

A high-quality prism scope should offer excellent optical clarity with features like fully multi-coated lenses to maximize light transmission. Look for sharp, distortion-free images that maintain visibility in various lighting conditions.

The reticle design is equally critical; etched reticles ensure visibility even without illumination, while options with bullet-drop compensation (BDC) help with accurate holdovers for medium-range targets.

Durability and Construction

The construction of a prism scope must withstand harsh environments and rugged use. Materials like aircraft-grade aluminum and hard-anodized finishes provide durability, while waterproof, fogproof, and shockproof features ensure reliable performance in extreme weather and heavy recoil situations. A scope with robust housing maintains functionality even under demanding conditions.

Magnification and Field of View

The fixed 3x magnification of prism scopes strikes a balance between close-range precision and medium-range engagement. Evaluate the scope’s field of view (FOV), as a wider FOV allows better situational awareness. This combination ensures the scope is versatile enough for dynamic shooting scenarios without sacrificing accuracy.

Illumination and Brightness Settings

Illuminated reticles with multiple brightness settings enhance visibility in diverse lighting conditions, from bright daylight to low-light environments. Red or green illumination options are common, with brightness levels that should accommodate both unaided viewing and night vision equipment for optimal usability.

Mounting Options and Compatibility

Ease of mounting and compatibility with your firearm platform are essential considerations. Scopes with a Picatinny or ACOG-compatible mount offer versatility and secure attachment.

Additionally, some scopes come with removable bases or integrated rails for adding secondary optics like reflex sights, expanding their functionality.

Eye Relief and Ergonomics

Adequate eye relief is crucial for comfortable shooting, especially with rifles that generate heavy recoil. Look for scopes with eye relief that balances precision and comfort, ensuring you can quickly acquire the sight picture without strain.

Compact, lightweight designs with user-friendly controls also improve ergonomics, making the scope easier to handle during extended use.

Battery Life and Power Efficiency

For illuminated reticles, battery life is a key factor. Long-lasting power ensures the reticle remains functional during prolonged shooting sessions or hunts. Scopes with efficient LED illumination systems and common battery types like CR2032 are convenient and reduce the need for frequent replacements.

Price and Value

Finally, consider the price-to-performance ratio. The best prism scopes offer a combination of premium materials, advanced optics, and practical features at a competitive price.

While higher-end models might include advanced features, ensure the scope aligns with your specific needs and budget to maximize value.

 Best 3x Prism Scopes FAQs

What are the advantages of using a 3x prism scope compared to traditional red dot sights?

A 3x prism scope offers a fixed magnification, which provides better target identification and precision at medium ranges compared to non-magnified red dot sights. Prism scopes also feature etched reticles that remain visible even without battery power, making them reliable in all conditions.

Additionally, their compact design and improved eye relief make them versatile for both tactical and hunting applications, especially when paired with features like bullet-drop compensation (BDC) for long-range holdovers.

Can a 3x prism scope be used for close-quarters combat or shooting?

Yes, many 3x prism scopes are designed with a wide field of view to allow situational awareness, making them suitable for close-range engagements. Some models even include an integrated or top-mounted Picatinny rail for attaching a red dot sight, providing a dual-optic setup for rapid transitions between close and medium-range targets. This versatility makes them a preferred choice for shooters seeking multi-purpose optics.

How do I choose the right 3x prism scope for my firearm?

When selecting a 3x prism scope, consider factors such as mounting compatibility, durability, and the specific features that suit your shooting needs. Ensure the scope fits your firearm’s platform (e.g., AR-15 or similar) and provides reliable performance under your typical shooting conditions.

Look for features like waterproof and fogproof construction, multiple brightness settings, and a reticle designed for your preferred ammunition to maximize accuracy and efficiency.

Final Thoughts

In conclusion,  the best 3x prism scopes are an excellent choice for shooters seeking a reliable, versatile, and compact optic. With features like etched reticles, durable construction, and optimal magnification, they bridge the gap between speed and precision, making them ideal for a variety of scenarios.

Whether you’re navigating close-quarters engagements or aiming at medium-range targets, these scopes provide exceptional clarity and performance. By considering key factors such as reticle design, optical quality, and build durability, you will be able to choose a perfect 3x prism scope to enhance your shooting experience and meet your specific needs.