Sightmark Citadel
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Athlon Argos BTR

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Sightmark Citadel
The Sightmark Citadel is built for precision, offering a first focal plane reticle that adjusts with magnification to maintain consistent subtensions for accurate ranging at any level. This feature is ideal for long-range shooting, making range estimation simple and reliable. One of the key advantages of the Citadel is its red illuminated reticle, which enhances target visibility in low light, ensuring you don’t miss your shot in challenging conditions. I found the exposed, low-profile locking turrets to be incredibly user-friendly, providing quick adjustments when needed while the locking mechanism ensures accuracy even under stress. The 30mm single-piece tube, made from aircraft-grade aluminum, gives the scope exceptional durability, withstanding recoil and ensuring precise alignment over time. Finally, the fully multi-coated optics provide superb image quality, maximizing light transmission and delivering bright, accurate visuals.
Athlon Argos BTR
For those getting started in the Precision Rifle Series (PRS), the Argos BTR GEN2 scopes are worth considering. Packed with high-end features, these scopes offer a versatile 4x magnification suitable for various shooting disciplines. The Precision True Zero Stop and Advanced Fully-Multi Coated Optics deliver a crystal-clear image in low-light conditions. With an exclusive XPL coating, the lenses are protected from dirt, grease, and harsh weather, while the rugged aircraft-grade aluminum tube ensures durability in any environment. The first focal plane design allows for dynamic reticle scaling as you zoom, and the illuminated reticle enhances visibility in low light. With fully multicoated optics, these scopes provide brighter images by reducing reflections and increasing light transmission.
Basic Details
| Brand | Color | Style | Sport | Item Weight | Material | |
|---|---|---|---|---|---|---|
| Sightmark Citadel | Sightmark | Black | 3-18x50 LR2 | Hunting, Paintball, Airsoft | 26.1 Ounces | Aluminum |
| Athlon Argos BTR | Athlon | Black | APLR2 FFP IR MOA | Hunting | 51.2 Ounces | Aluminum |
Magnification & Range
| Magnification | Parallax Setting | |
|---|---|---|
| Sightmark Citadel | 3-18x | 25 yards to infinity |
| Athlon Argos BTR | 6-24X | 10 yards to infinity |
Performance Insights
| Eye Relief | Zoom Ratio | FOV | Night Vision | |
|---|---|---|---|---|
| Sightmark Citadel | 3 Inches | 6:1 | 6.5° - 1.1° | No |
| Athlon Argos BTR | 3.5 inches | 4:1 | 6.3 - 1.5 degrees | No |
To Calculate scope clicks: Let’s check out Scope Clicks Calculator
Diameter & Tube Size
| Tube Size | Tube Diameter | Objective Diameter | |
|---|---|---|---|
| Sightmark Citadel | 30mm | 30mm | 50mm |
| Athlon Argos BTR | 30mm | 30mm | 50mm |
Compatibility
| Compatible Devices | Mounting Type | |
|---|---|---|
| Sightmark Citadel | Rifle | Picatinny Mount |
| Athlon Argos BTR | Rifle | Scope rings |
Additional Features
| Reticle | Max Elevation Adjustment | |
|---|---|---|
| Sightmark Citadel | Mil-Dot | 60 MOA |
| Athlon Argos BTR | APLR2 FFP IR MOA | 40 MOA |
Built for Tough Conditions
| Waterproof | Fogproof | Shockproof | |
|---|---|---|---|
| Sightmark Citadel | Yes | Yes | Yes |
| Athlon Argos BTR | Yes | Yes | Yes |
Accessories & Warranty
| Includes | Warranty | |
|---|---|---|
| Sightmark Citadel | Sunshade, Throw lever, Lens caps, Battery, Manual | Limited Lifetime Warranty |
| Athlon Argos BTR | Lens covers, sunshade, user manual | Limited lifetime warranty |



















