Solid, reliable optics built for air-guns, rimfire rifles and recoil-heavy spring systems. The AGS Cobalt 4×40 gives a fixed 4× magnification with a 40 mm objective, optimized for close-to-medium range shooting (around 35 yards / ≈32 m). It’s ideal for backyard target practice, small-game hunting and general plinking. Supplied with 3/8″ match mount rings and a cobalt lens coating, this scope delivers clarity, durability and excellent value.
Why shooters choose the AGS Cobalt 4×40
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Purpose-built for air-guns and rimfire: Designed to withstand spring and PCP recoil common to local rifles.
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Fixed parallax at 35 yards: Perfect for the ranges most shooters use for plinking and pest control.
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Half Mil-Dot reticle: Helpful hold-offs and range estimation for both new and experienced shooters.
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Robust mounting: Comes with 3/8″ double-screw match rings for quick fitting to dovetail rails.
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Quality optics: Cobalt coating improves light transmission and image contrast in low-light conditions.
Specifications & features
| Magnification |
4× |
| Objective lens diameter |
40 mm |
| Reticle |
Half Mil-Dot |
| Parallax |
Fixed at 35 yards (≈32 m) |
| Tube diameter |
1 inch (≈25.4 mm) |
| Mounts included |
3/8″ double-screw match rings (suitable for dovetail rails) |
| Lens coating |
Cobalt coating for improved clarity |
| Ideal for |
Air-guns (spring, PCP, gas-ram), rimfire rifles |
How you’ll use it
- Perfect for backyard target practice and small-game hunting with an air-rifle — simple, dependable and quick to acquire targets.
- Mounts easily on 3/8″ dovetail rails using the included match rings — ready for most South African air-rifles and rimfires.
- The wide field of view makes tracking moving targets easier; Half Mil-Dot reticle helps with hold-offs and basic ranging.
Installation & care tips
- Zero the scope from a stable rest — fixed 4× magnification means you rely on fundamentals for accuracy.
- Ensure correct eye-relief and secure the 1-inch tube firmly in the mount rings.
- Clean lenses with a proper lens cloth to protect the cobalt coating and preserve optical clarity.
- Use the scope within its parallax sweet-spot (~35 yards); for longer ranges consider a variable magnification optic.
Is this scope suitable for spring-powered air-rifles?
Yes — the AGS Cobalt 4×40 is designed to tolerate the recoil of spring, PCP and gas-ram systems commonly used here.
Will the included mounts fit my rifle?
The scope ships with 3/8″ match rings for dovetail rails. If your rifle uses a different mounting system, you’ll need suitable rings or a rail adapter.
Ready for dependable performance? Add the AGS Cobalt 4×40 Scope to your cart today — a no-nonsense optic for shooters who want accuracy without complication.