The lever allows easy variation of zoom and is designed specifically for the Hawke Airmax with 30mm tube.
The lever is attached by removing the M3 hex bolt and sliding over the 30mm section of the scope. It is then positioned and tightened in place with the bolt. The nut may need pushing with a larger hex key to engage with the bolt but the result is minimum exposed thread.
Weight approx 9 grams.
Focus wheels and levers are also available in matching materials and colours.