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Forward F455S
Manual
Forward F455S

Table of contents

Mounting Attachment on Optical Riflescope

 

1. Select the adapter (available separately) with the required diameter of insert depending on the outer diameter of the lens of your optical riflescope (see the Table).

2. The designation 42mm / 50mm / 56mm in the title of the adapter refers to the optical diameter of the lens in the optical riflescope.

3. Remove the cap (16) from the 42mm adapter (19) (SKU 79171) by turning it clockwise. To remove the cap from the 50mm (SKU 79172) or 56mm (SKU 79173) adapters, turn it anticlockwise.

4. Degreasing of the body of the optical riflescope before mounting is recommended.

5. Mount the insert (18) onto the adapter (19) as far as it will go.

6. Move the lever (22) to the OPEN position.

7. Mount the adapter with the insert into the lens of the optical riflescope (17).

8. Move the lever (22) from its initial OPEN position to the CLOSE position.

9. Ensure that the adapter fits snugly against the lens.

10. If there is any gap, do the following:

  • Loosen the locking screw (20) with an Allen key (S=2mm).

  • Tighten the screw (21) with an Allen key (S=4mm) with the force necessary to ensure that the adapter fits tightly against the lens. The clamping forces should be 1 Nm.

  • Tighten the locking screw (20).

11. The effort can be tested with a torque screwdriver.

12. Insert the attachment firmly into the adapter so that the pins located in the adapter case fit into the grooves (23) of the attachment. Turn the attachment clockwise as far as it will go. The triangular mark on the attachment and the square on the adapter body must be aligned.

13. To align the attachment, turn the handle (22) to the OPEN position and align the attachment with the horizon.


Selection Table for Riflescope Inserts

Cover adapter model

The internal diameter of the insert needs to match the outer diameter of the objective lens housing of the daylight riflescope it is being installed on.

Insert internal diameter, mm

Suitable for lens housing of daylight riflescopes with an outer diameter of, mm

Cover adapter FN 42mm

45.5

45.5

46

46

46.5

46.5

47

46.7-47.6

48

47.7-46.7

49

48.7-49.6

50

49.7-50.6

Cover adapter FN 50mm

51.6

51.6

53.4

53.4

55

54.7-55.6

56

55.7-56.6

57

56.7-57.6

58

57.7-58.6

59

58.7-59.6

Cover adapter FN 56mm

60

59.7-60.6

61

60.7-61.6

62

61.7-62.6

63

62.7-63.6

64

63.7-64.6

65

64.7-65.6