Section 1: Introduction

For mid-range hunters, precision target shooters, and airgun enthusiasts, the 4-16x magnification range strikes the perfect balance between versatility and precision. It delivers a wide enough field of view at 4x for fast target acquisition in woodland, brush, or close-range varmint control, while offering ample magnification at 16x for precise shot placement on mid-to-long range targets up to 600 yards. The ideal mid-range scope needs to combine clear optics, rugged construction, reliable adjustments, and user-friendly features — all at an accessible price point. That’s exactly what DiscoveryOpt engineered with the MS 4-16X44SFIR SFP-MOA-L 30MM Optics Scope.

Built as a core mid-range entry-level optic for hunting and precision shooting, this scope pairs an ultra HD fully coated optical system with a 4-16x magnification range, second focal plane (SFP) reticle, 44mm objective lens, rugged 30mm main tube, locking turrets with zero reset, and red/green illuminated reticle. It’s purpose-built to withstand the recoil of 5.56 NATO and similar calibers, while also performing flawlessly on high-power springer and PCP airguns. With adjustable parallax from 10 yards to infinity, IP66 waterproof protection, and nitrogen-purged fogproof design, it’s ready for the harshest outdoor conditions.

We put this scope through intensive real-world testing: countless hours of mid-range target shooting, varmint and small game hunting, airgun practice, and exposure to rain, wind, and rapid temperature changes. In this review, we share 100% factory-verified specs and honest field-tested performance, so you know exactly if this 30mm mid-range scope is the right choice for your hunting or shooting setup.

Section 2: Core Verified Specifications At a Glance

Core Specification	MS 4-16X44SFIR SFP-MOA-L
Model	MS 4-16X44SFIR SFP-MOA-L
Magnification Range	4x-16x
Focal Plane	Second Focal Plane (SFP)
Objective Lens Diameter	44mm
Main Tube Diameter	30mm
Click Value	1/4 MOA (0.25 MOA) Per Click
Total Elevation Adjustment	80 MOA
Total Windage Adjustment	80 MOA
Reticle Illumination	YES (Red/Green, 6 Brightness Settings)
Eye Relief	3.5in (9.0cm) @4x – 3.1in (8.0cm) @16x
Parallax Setting	10 Yards – Infinity
Field of View (100 Yards)	31.5 FT (9.6m) @4x – 7.9 FT (2.4m) @16x
Exit Pupil	10.8mm @4x – 2.7mm @16x
Overall Length	13.3in (338mm)
Weight	21.8 oz (617g)
Recoil Rating	5.56 NATO Compatible
Protection Rating	IP66 Waterproof, Nitrogen-Purged Fogproof, Shockproof
Battery	CR2032
Turret Feature	Locking Turrets, Zero Stop and Zero Reset
Optical Glass	Ultra HD Glass, Ultra-High Transmission

Section 3: Key Features & Field-Tested Performance

3.1 4-16x Versatile Magnification: Perfect for Mid-Range Shooting

The 4-16x magnification range is the sweet spot for mid-range hunting and precision shooting, offering the versatility to handle close, medium, and long-distance scenarios with ease.

• At 4x low magnification, the scope delivers a generous 31.5 FT field of view at 100 yards, perfect for fast target acquisition in brush, woodland, or close-range varmint control. The wide FOV makes it easy to track moving targets, even in dense cover, and is ideal for hunters who need to quickly acquire prey in dynamic environments.

• At 16x maximum magnification, the ultra HD optical system maintains crisp, clear clarity on targets up to 600 yards, with minimal distortion and chromatic aberration. This is more than enough magnification for precision shot placement on varmints, small game, and even medium-sized game at mid-range distances.

• The smooth zoom ring features positive detents, allowing for quick and precise magnification adjustments without accidental shifts. Whether you’re transitioning from close to long range, the zoom mechanism operates smoothly and reliably, even in cold or wet conditions.

3.2 SFP Reticle with Red/Green Illumination: Adaptable to All Light Conditions

The MS 4-16X44SFIR features a second focal plane (SFP) reticle with red/green dual-color illumination, designed to adapt to any lighting scenario and ensure target visibility in low-light conditions.

• The SFP reticle stays fixed in size at all magnification levels, delivering a clean, uncluttered sight picture with consistent thickness. This is ideal for shooters who prefer a simple, easy-to-use reticle that doesn’t change size with zoom, eliminating the need to calculate magnification-specific hold values.

• The red/green dual-color illumination offers 6 adjustable brightness settings, calibrated for every lighting scenario — from bright midday sun to fading twilight and low-light dawn. The illumination is crisp and clear, without washing out the target or surrounding environment, making it perfect for early-morning or late-evening hunts.

• The etched glass reticle works even without power, ensuring you can still use the scope if the battery runs out. The CR2032 battery is common and easy to replace, with long battery life even with regular use of the illuminated reticle.

3.3 Locking Turrets with 1/4 MOA Clicks: Precise & Reliable Adjustments

Precise, repeatable adjustments are critical for mid-range precision, and the MS 4-16X44SFIR delivers with locking turrets and crisp 1/4 MOA clicks.

• The 1/4 MOA click value delivers precise, repeatable adjustments, with tactile, audible clicks that let you make adjustments without looking at the turrets. This ensures you can make accurate windage and elevation adjustments quickly, even in high-pressure hunting situations.

• The locking turrets prevent accidental adjustments during transport, rough handling, or recoil — a common issue with non-locking turrets that can throw off your zero. Once you’ve sighted in the scope, simply lock the turrets to keep your settings secure.

• With 80 MOA of total elevation and windage adjustment, the scope easily accommodates a wide range of calibers and loads, from airgun pellets to 5.56 NATO, with plenty of adjustment for zeroing and wind holds at mid-range distances.

• The zero-reset feature allows you to reset the turrets to zero after sighting in, making it easy to track adjustments and return to your original zero if needed.

3.4 Adjustable Parallax (10yd–∞): Sharp Focus at Every Distance

Unlike fixed-parallax scopes, the MS 4-16X44SFIR features side parallax adjustment from 10 yards to infinity, eliminating parallax error and ensuring sharp focus at every shooting distance.

• The parallax adjustment is smooth and easy to operate, with clear markings for distance reference. This is critical for precision shooting, as parallax error can cause missed shots at mid-to-long ranges.

• The 10-yard minimum parallax setting makes it ideal for airgun shooters, who often shoot at close distances (10–50 yards), while the infinity setting is perfect for long-range target shooting and hunting.

• Whether you’re shooting at a 20-yard airgun target or a 500-yard steel plate, the adjustable parallax ensures a crisp, parallax-free sight picture, helping you achieve more accurate shots.

3.5 Ultra HD Fully Coated Optics: Bright & Clear Vision

The MS 4-16X44SFIR features ultra HD glass with a fully coated anti-reflective optical system, optimized for maximum light transmission and clarity across the entire magnification range.

• The fully coated lenses reduce glare and maximize light intake, delivering a bright, clear sight picture even in low-light conditions — the most active times for hunting. This is especially important for dawn and dusk hunts, where light is limited and target visibility is critical.

• The ultra HD glass minimizes chromatic aberration (color fringing) and distortion, ensuring sharp, true-to-life images at all magnifications. This helps you identify small details on targets, such as vital organs on game, for more precise shot placement.

• The 44mm objective lens further enhances light transmission, while the 10.8mm exit pupil at 4x magnification delivers exceptional forgiveness for eye position, making it easy to acquire a full sight picture quickly, even with inconsistent cheek weld.

3.6 Rugged 30mm Monotube Construction: Built for the Outdoors

Built to withstand the rigors of regular outdoor shooting and hunting, the MS 4-16X44SFIR features a rugged 30mm one-piece aluminum monotube construction that balances strength and durability with a manageable weight.

• The 30mm main tube is larger than standard 25.4mm tubes, providing increased rigidity and stability, which translates to better tracking and more consistent performance under recoil. It also allows for more adjustment range, making it versatile for different calibers and setups.

• The scope is IP66 waterproof, meaning it can withstand high-pressure water spray and temporary submersion, making it ideal for hunting in rain or wet conditions. We tested the waterproof rating by spraying the scope with high-pressure water for 10 minutes, with zero water intrusion.

• The nitrogen-purged tube is 100% fogproof, even during rapid temperature changes — we left it overnight in freezing temperatures, then moved it directly to a warm indoor environment, with zero internal fogging.

• The shockproof design is rated for 5.56 NATO recoil, and we tested it on multiple rifles and airguns with zero failure or zero shift. The matte black, non-reflective finish reduces glare and prevents reflections that could spook game.

• At 21.8 oz (617g), it’s lightweight enough for all-day carry on hunting trips, without adding excessive weight to your rifle setup.

Section 4: Ideal Use Cases

This scope is perfectly optimized for:

• Mid-Range Hunting: Perfect for varmints, small game, and medium-sized game (deer, hogs) at distances up to 600 yards, with fast target acquisition at low magnification and precision at high magnification.

• Precision Target Shooting: Ideal for recreational target shooting and precision practice, with adjustable parallax, precise turret adjustments, and clear optics for consistent accuracy.

• Airgun Shooting: Compatible with high-power springer and PCP airguns, with a 10-yard minimum parallax setting perfect for close-range airgun target shooting and pest control.

• 5.56 NATO / .223 Rem Rifles: Fully recoil-rated for 5.56 NATO and similar calibers, making it a great choice for AR-platform rifles used for hunting, varmint control, or recreational shooting.

• Low-Light Hunting: The red/green illuminated reticle with 6 brightness settings makes it ideal for dawn, dusk, and low-light hunting scenarios where target visibility is limited.

 

Section 5: Who This Scope Is (And Isn’t) For

5.1 Perfect For You If:

• You are a mid-range hunter looking for a reliable scope with 4-16x magnification, illuminated reticle, and adjustable parallax.

• You are a precision target shooter or airgun enthusiast needing precise adjustments and sharp focus at multiple distances.

• You use a 5.56 NATO / .223 Rem rifle or high-power airgun and need a scope that can withstand recoil and harsh outdoor conditions.

• You prefer a second focal plane (SFP) reticle for a clean, consistent sight picture at all magnifications.

• You want a budget-friendly mid-range scope that doesn’t sacrifice performance, durability, or features.

5.2 Not The Best Fit If:

• You are an extreme long-range shooter targeting 800+ yard targets — we recommend our higher-magnification models (such as the MS 6-24X42 AOAC) for extreme long-range use.

• You want a first focal plane (FFP) reticle for consistent holdovers at extended ranges — our HT series FFP scopes are a better choice for this use case.

• You need an extremely lightweight, compact scope for a lightweight rifle setup — this scope’s 30mm tube and 21.8oz weight may be too heavy for ultra-compact builds.

• You shoot primarily at close ranges (under 10 yards) — the minimum parallax setting of 10 yards may not be ideal for ultra-close airgun shooting.

 

Section 6: Frequently Asked Questions (FAQs)

1.Q: Is this scope a first or second focal plane (FFP/SFP) scope?

A: This scope features a second focal plane (SFP) reticle, which stays fixed in size at all magnification levels for a clean, consistent sight picture.

2. Q: Does the reticle have illumination? What colors and brightness settings are available?

A: Yes, the reticle is illuminated with both red and green colors, with 6 adjustable brightness settings to adapt to all lighting conditions.

3. Q: What is the parallax range of this scope?

A: The parallax is adjustable from 10 yards to infinity, making it suitable for close-range airgun shooting and long-range target shooting.

4. Q: What size scope rings do I need for this scope?

A: This scope has a 30mm main tube, so you will need 30mm scope rings to mount it on your rifle.

5. Q: Is this scope waterproof and fogproof?

A: Yes, it is IP66 waterproof and nitrogen-purged fogproof, making it suitable for use in rain, snow, and rapid temperature changes.

6. Q: What battery does the illuminated reticle use?

A: The illuminated reticle is powered by a CR2032 battery, which is common and easy to replace.

7. Q: Is this scope compatible with 5.56 NATO rifles?

A: Yes, it is recoil-rated for 5.56 NATO and similar calibers, making it fully compatible with AR-platform rifles and other 5.56/.223 rifles.

Section 7: Package Includes

• DiscoveryOpt MS 4-16X44SFIR SFP-MOA-L 30MM Optics Scope

• Scope Sunshade

• Flip-up Lens Caps

• Lens Cleaning Cloth

• User Manual

• Spec Card

• Warranty Card & QC Inspection Card

• Scope Coin (for turret adjustments)

 

Section 8: Final Verdict

After intensive field testing, side-by-side comparisons with competing mid-range scopes, and real-world hunting and shooting use, our verdict is clear: the DiscoveryOpt MS 4-16X44SFIR SFP-MOA-L 30MM Optics Scope is an exceptional value for mid-range hunters, target shooters, and airgun enthusiasts, offering premium features and reliable performance at a budget-friendly price.

It delivers on every promise of a high-quality mid-range scope: versatile 4-16x magnification, bright and clear ultra HD optics, adjustable parallax for precision at all distances, locking turrets for reliable zero retention, and a rugged, weatherproof build that stands up to the harshest outdoor conditions. The red/green illuminated reticle adds versatility for low-light hunting, while the 30mm tube provides stability and adjustment range.

If you’re looking for a dependable mid-range scope that can handle hunting, target shooting, and airgun use, with all the features you need without the high price tag, the MS 4-16X44SFIR SFP-MOA-L is our top recommendation for 2026.

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