The Nikko Stirling Mount Master 4x32 AO is a fixed-magnification (4x) riflescope ideal for air rifles and .22LR rifles. Its specifications indicate a robust, precise setup for recreational shooting and pest control: AO (Adjustable Objective/parallax adjustment), HMD (Half Mil-Dot reticle), FMC (Fully Multi-Coated lenses), SFP (Second Focal Plane), and a 1-inch tube.
Key Technical Specifications
- Magnification: Fixed 4x with a 32 mm diameter objective lens.
- Parallax Correction (AO): Manually adjustable at the objective bell from 10 meters (or yards) to infinity.
- Optics (FMC): Fully multi-coated lenses that optimize light transmission, eliminate reflections, and prevent scratches.
- Reticle (HMD): Half Mil-Dot type in the second focal plane (SFP; does not change size when aiming), ideal for calculating pellet drop and windage.
- Adjustment turrets: Micrometric adjustment of 1/4 MOA per click.
- Construction: One-piece 1" (25.4 mm) tube made of matte black anodized aluminum. It is sealed and nitrogen-purged to ensure complete water, fog, and shock resistance.
- Dimensions and weight: Approximate length of 28.5 cm and a light weight of around 281 grams.
- Included accessories: Supplied with dust caps and a set of two rings for an 11mm rail (airgun standard).