![](/data/public/uploads/2023/07/krypton-2_fxq-fxg-optical-riflescope-mounting2x_.png)
Note: if you wish to use a third-party adapter or a Pulsar PSP Ring Adapter, unscrew the ring (A) near the mount assembly (18).
Step 1. Pick up an insert
![](/data/public/uploads/2023/03/krypton-2_fxq_fxg_mounting-12x.png)
- Select the Ring Adapter (13) (sold separately) with the insert (12) of the required diameter depending on the outer diameter of the lens of your optical riflescope (11) (see Table).
- The designation 42 mm / 50 mm / 56 mm in the name of the adapter means the lens diameter of the optical riflescope.
For installation of the PSP-30B adapter, see its operating manual.
Step 2. Install the insert into the adapter
![](/data/public/uploads/2023/03/krypton-2_mounting-22x.png)
- Apply 2-3 strips of double-sided tape to the outer surface of the insert of your choice (12).
- Push the insert (12) of your choice into the Ring Adapter (13) until it stops.
Step 3. Mount the adapter on the optical riflescope
![](/data/public/uploads/2023/03/krypton-2_fxq_fxg_mounting-32x.png)
- Move the lever (17) to the OPEN
position.
- Before installing the Ring Adapter (13) onto the optical riflescope, it is recommended to degrease the lens body of the optical riflescope (11).
- Mount the Ring Adapter (13) with the insert (12) onto the lens of the daylight optical riflescope (11) as far as it will go.
Step 4. Adjust adapter lever
![](/data/public/uploads/2023/03/krypton-2_fxq_fxg_mounting-42x.png)
- Move the lever (17) from its initial OPEN
position to the CLOSE
position.
- Loosen the locking screw (15) with a 2mm Allen key*.
- Tighten the screw (16) with a 4mm Allen key*. The clamping force should be 1.5-2 Nm (13.3-17.7 in-lbs) (use a torque screwdriver) to ensure the lever (17) is correctly tightened, while the Ring Adapter should not move relative to the body of the optical riflescope (11). If necessary, tighten or loosen the screw (16) to operate the lever (17) in the best way possible.
- Tighten the locking screw (15) as far as it will go.
*Items of PSP B Ring Adapter (available separately)
Selection table for riflescope inserts
Ring 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 riflescope with an outer diameter of, mm
|
PSP 42B Ring Adapter 42 mm
(SKU 79206)
|
45.5
|
45.5
|
46
|
46
|
46.5
|
46.5
|
47
|
46.7-47.6
|
48
|
47.7-48.6
|
49
|
48.7-49.6
|
50
|
49.7-50.6
|
PSP 50B Ring Adapter 50 mm
(SKU 79207)
|
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
|
PSP 56B Ring Adapter 56 mm
(SKU 79208)
|
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
|