The groundbreaking K540i sets new performance standards with a pioneering new-generation optical design. It offers a 40 % wider field of view*, an exceptionally comfortable eyebox and 8 x zoom with perfect optical performance across the entire adjustment range.

*) Based on comparison with the K525i at 25x magnification.
Absolute precision, repeat accuracy and unique handling for maximum performance.

PRODUCT HIGHLIGHTS
- Revolutionary optical design with a 40% wider field of view*
- Perfect optical performance with 8x zoom over the entire adjustment range
- Exceptionally comfortable eyebox even at 40X magnification
- Windage adjustment available left or right with TWIST GUARD rotation protection
- Patented parallax adjustment integrated in the elevation turret (20 m to ∞)
- 160 clicks per rotation – absolutely reliable repeat accuracy and clearly defined clicks
- Precise illuminated reticle in 1st focal plane
TECHNICAL DATA
| Magnification: | 5-40x56i |
| Exit pupil: | 1.4-7.7 in |
| Eye relief: | 3.62 in |
| Field of view: | 30.6 - 3.9 ft/100 yds |
| Diopter compensation: | +2/–3 dpt |
| Twilight factor (DIN 58388): | 13.9-47.3 |
| Impact correction per click: | .1 MRAD |
| Adjustment range (E/W): | 104.4 / 43.2 in/100 yds | 29.0 / 12.0 MILS | 99.69 / 41.25 MOA |
| Parallax adjustment: | 20 m till ∞ |
| Length: | 16.1 in |
| Weight: | 39.1 oz |
| Focal plane: | 1. |
| Illuminated: | Yes |
| Warranty: | Limited Lifetime Warranty (2 years electronics) |
DATASHEET
DATASHEET DOWNLOAD
First focal plane
Where riflescopes have reticles in the first focal plane, the size of the reticle remains proportional to the target and adjusts with the magnification. This allows for precise aiming points and reliable distance measurement, regardless of the chosen magnification.
Main tube diameter 36 mm
The main tube has a diameter of 36 mm.
Adjustment direction CCW
The adjustment direction of the elevation and windage turrets is designed to be counter-clockwise (ccw).
MIL
Click resolution MRAD: 0.1 MRAD click corresponds to a point of impact shift of 1 cm at a distance of 100 m.
Windage left or right
Models featuring parallax adjustment integrated into the elevation turret offer ergonomic and intuitive access to all controls. This innovative design allows the windage adjustment to be positioned on either side of the turret housing – left for right-handed shooters and right for left-handed shooters. Thus adjustments can be made without ever leaving the shooting position.
INDEXSTOP
The INDEXSTOP (mechanical stop) is positioned 2–3 clicks below the zero indicator and is set after sighting in, allowing a quick and repeatable return to zero.
TWISTGUARD
The patented anti-rotation mechanism of the windage turret prevents unintentional adjustments by means of a freely rotating protective cap – without additional locking mechanisms, it is immediately ready for use.
Bubble Level 36 mm
K540i, K328i, K864
Flip-Up Cover OCULAR 52 mm
K540i, K328i, K864, K18i-2
Flip-Up Cover OBJECTIVE 56 mm
K540i, K525i, K864, K1050
Killflash ARD 56mm
K540i, K525i, K864, K1050
Parallax Spinner K318i
K318i (non-REFINED)
Sunshield 56 mm
K540i, K525i, K864, K1050








