Delta Optical Stryker HD 3.5-21x44 FFP IR DLR-3 0.1MRAD 34mm Rifle Scope
instalment plans from £138.26/month

Weighing in at just 805 grams and measuring 315 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.
- 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)
- Compact and lightweight design for easy handling
- Large elevation adjustment range for addressing significant bullet drop
- 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
- 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
- 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.
DPD SHIPMENTS REQUIRE THE CUSTOMER TO SHOW A PIN CODE ON DELIVERY – READ MORE: HERE
Note: The above DPD link is to our group partner site Optics Warehouse, with whom we share logistics and stock. Link opens in a new window.
Couriers




We use DPD, Royal Mail, TNT, and UPS courier services for all our UK and international orders. Once your order is dispatched, you will receive an email with your unique tracking number.
In-Store Items
These are items we have in stock and aim to dispatch within 1–2 working days. During busy periods, this may be delayed slightly. If you'd prefer to collect your item in person, please contact us in advance to arrange. Collection orders must be paid for beforehand.
Pre-Order Items
Pre-order items are typically out-of-stock or in limited supply. Purchasing a pre-order secures your item, and it will be dispatched within 24 hours of restock where possible. Check the product page for estimated restock dates. These dates may change, so staying in touch is advised.
International Delivery & Taxes
If your shipping address is outside the UK, you may incur import duties or taxes upon arrival in your country. These charges are your responsibility. Customs regulations vary, so please check with your local customs office. Some packages may be opened for inspection.
Need Help?
If you need assistance, call us at +44 (0)1803 611895 (Optics Warehouse) or email order@tacticalscope.co.uk.
DPD Shipments & PIN Code Delivery
We have now introduced DPD Pin Code verification for all orders shipped via DPD. You will receive a PIN via email and text.
A valid email and mobile number must be provided at checkout. Emails will come from Riviera House 3PL. Please check spam/junk folders if not received.
Failure to present your PIN to the delivery driver will result in a failed delivery and rescheduling may be required.