Delta Optical Stryker HD 3.5-21x44 FFP IR DLR-3 0.1MRAD 34mm Rifle Scope
Long-range performance without bulk
"The Stryker HD 3.5-21x44 is a true “do-it-all” optic that balances magnification, clarity, and ruggedness beautifully. This scope fits a broad range of shooting disciplines, from medium-range precision to general field use, and the 44mm objective lens delivers a bright, clear image with excellent depth of field and field of view — two often overlooked but critical attributes when tracking moving targets or scanning terrain.
The illuminated reticle is subtle but effective, helping maintain quick target acquisition without washing out the image. With smooth turret action, zero stop, and first focal plane reticle, this scope is ready for PRS matches, hunting trips, or tactical applications.
If you want one scope to rule them all for under £2000, the Stryker HD should be at the top of your list." - Thomas (Online Sales Associate & Product Specialist).
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The Delta Optical Stryker HD 3.5-21x44 FFP IR DLR-3 0.1MRAD 34mm Rifle Scope is the ultimate solution for shooters who demand precision and versatility in one compact package.
Designed to bridge the gap between low-power variable optics (LPVO) and first focal plane (FFP) scopes for long-range shooting, this scope offers an exceptional range of functionality. Whether you're a tactical shooter or a competitor in long-range events, the Stryker HD will exceed your expectations.
Weighing in at just 805 grams and measuring 320 mm in length, the Delta Stryker HD 3.5-21x44 is remarkably lightweight, making it an ideal choice for high-accuracy carbines and designated marksman rifles (DMRs). This compact design allows for easy handling without compromising on performance. You can be confident in your ability to acquire targets at both medium and long ranges with exceptional precision.
One of the standout features of the Delta Stryker HD is its impressive elevation adjustment range of 45 mrad, which is particularly beneficial when dealing with significant bullet drop, such as that experienced when firing from a .22 LR caliber. This feature allows for fine-tuning your aim to suit various distances and shooting conditions.
The integrated ZeroStop function ensures that you can lock the elevation knob in place, providing a reliable and repeatable aiming setting, so you can focus on hitting your target accurately every time.
Built with robustness in mind, the 34 mm diameter tube and solid construction of the Delta Stryker HD guarantee durability, even when used with the largest rifle calibers. This scope is engineered to withstand the rigors of difficult terrain and the shocks associated with heavy recoil, ensuring it will perform reliably under any conditions.
The DLR-3 reticle, featuring a central illuminated dot with a diameter of 0.07 mrad and thin arms marked at 0.2, 0.5, and 1 mrad intervals, provides shooters with the tools to make precise distance estimations and corrections for projectile drop and wind.
The Stryker HD operates in the first focal plane (FFP), allowing the reticle to maintain consistent dimensions against the target across the entire magnification range, which is particularly advantageous for quick target acquisition and adjustments.
The scope features a linear field of view at 100 meters ranging from 11.1 to 1.9 meters, alongside an impressive parallax adjustment from 9 meters to infinity. With a diopter correction range of -3D to +3D, this scope ensures a clear view tailored to your eyesight.
Completing the package, the Delta Stryker HD comes equipped with essential accessories including a battery, objective and eyepiece caps, an Allen key, and a zoom lever.
Engineered for extreme performance, the scope is nitrogen-filled to prevent fogging, water-resistant up to 0.3 kg/cm², and shock-resistant up to 6500 J, making it suitable for operation in a wide range of temperatures from -20°C to 71°C. With a generous 120-month warranty, the Delta Stryker HD 3.5-21x44 FFP IR DLR-3 is more than just a scope; it’s a trusted companion for shooters who demand the best in precision, performance, and durability.
Best suited for:
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Precision shooters, long-range marksmen, or competitive shooters (e.g. PRS / DMR-style setups) who want a capable scope without excessive bulk.
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Hunters and field shooters using rifles where a balance between light weight and magnification versatility matters (e.g. medium to long-range hunts).
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Tactical shooters, DMR users or those wanting a compact, versatile optic for varied environments — from forest stalking to shooting over open terrain.
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Users who appreciate first-focal-plane reticles and need reliable holdovers, ranging, or drop compensation at different zoom levels.
- Model Number DO-2525
- Minimum Magnification 3.5x
- Maximum Magnification 21x
- Lens Diameter 44 mm
- Reticle Name DLR-3
- Grid Position First focal plane (FFP)
- Mesh Illumination Focal point
- Eye Distance 71 – 99 mm
- Exit Pupil 12.57 - 2.1 mm
- Linear Field of View at 100 m 11.1 - 1.9 m
- Angular Field of View 6.33 - 1.06°
- Turrets Type Opened
- Vertical Adjustment Range 45 MRAD
- Horizontal Adjustment Range 21 MRAD
- Single Click Adjustment 0.1 MRAD
- One Turret Rotation 10 MRAD
- Parallax Adjustment 9 m – ∞
- Diopter Correction -3D/+3D
- ZeroStop Yes
- Length 315 mm
- Tube Diameter 34 mm
- Outer Diameter of Lens 52 mm
- Outer Diameter of Eyepiece 44 mm
- Weight 805 g
- Sun Visor Thread M49x0.6 mm
- Water Resistance 0.3 kg/cm²
- Nitrogen Filling Yes
- Operating Temperature -20 / 71 °C
- Shock Resistance 6500 J
- Battery Type CR2032
- Warranty Period 120 months
- Versatile magnification range (3.5x to 21x) From fast target acquisition at 3.5× to precise long-range aiming at 21× — suitable for varied shooting distances and scenarios
- High-definition ED / fully multicoated optics: Sharp, high-contrast images with minimized chromatic aberration and good light transmission across the zoom range.
- Compact and lightweight design for easy handling. Easier to mount on lighter rifles or DMR/ tactical builds compared to bulky scopes — useful for mobility or carry
- Large elevation adjustment range for addressing significant bullet drop. 0.1 mrad clicks, ~45 mrad elevation travel, side parallax from ~9 m to ∞ — ideal for long-range shooters adjusting for drops or environmental changes.
- ZeroStop function for safe and repeatable aiming settings
- Robust construction to withstand heavy recoil and tough conditions
- First focal plane (FFP) DLR-3 reticle for consistent target dimensions across magnification levels. Reticle subtensions remain true at any magnification, enabling accurate ranging, holdovers, windage or drop compensation without re-zeroing.
- Illuminated reticle for enhanced visibility in low-light conditions
- Thin reticle arms with incremental markers for precise distance estimation
- Nitrogen-filled for fog-proof performance
- Water-resistant and shock-resistant for durability in various environments
- Included accessories such as a battery, objective and eyepiece caps, Allen key, and zoom lever
- Delta Optical Stryker HD 3.5-21x44 FFP IR DLR-3 0.1MRAD 34mm Rifle Scope
- Battery
- Cap for objective and eyepiece
- Allen key
- Zoom lever
Q: What magnification range does this scope cover?
A: It covers 3.5× up to 21× magnification — giving you a versatile zoom range for mid- to long-range shooting and varied field or target conditions.
Q: Does the reticle remain accurate at all zoom levels?
A: Yes — the reticle is in the first focal plane (FFP), so mil-markings stay true across the entire magnification range, allowing consistent holdovers or windage/drop corrections.
Q: Is this scope suitable for heavy calibers or harsh field conditions?
A: Yes — built with a 34 mm aircraft-grade tube, the scope is shock-, water- and fog-proof. The robust construction, plus durable turrets and large internal adjustment range, makes it suitable even for powerful rifle calibers.
Q: How compact and light is it compared to full-size long-range scopes?
A: The scope weighs around 805 g (some variants ~890 g) and has a length of 320 mm — significantly more compact and lighter than many full-sized long-range scopes, making it easier to mount on lighter or tactical rifles.
Q: What kind of reticle options are available?
A: Common reticle options include DLR-3 (illuminated) and DPRC-1 (also MIL/MIL). Both are in the first focal plane and offer precise mil-based subtensions for holdovers, ranging, and wind/drift compensation.
Q: What kind of shooting is this scope best suited for?
A: Ideal for precision target shooting, long-range hunting, tactical or DMR setups, and competitive shooting — wherever variable distance, drop compensation, and high optical clarity are needed.
- Delta 2 year warranty
Tactical Scope Shipping Policy
Our aim is to ensure that your order arrives with you as soon as possible and in the safest, most cost-effective means.
Shipping charges may be subject to additional surcharges if out of area or over weight restrictions.
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If you need assistance, call us at +44 (0)1803 611895 (Optics Warehouse) or email [email protected].
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