Compact, light, and “invisible” when you don’t need it. The flip-out BL4 lets you level the rifle instantly and preserve long-range accuracy.

Advantages:

• Flip-out design: open/close with one motion — nothing blocks your view or reload.

• Precise leveling: crisp bubble indicator keeps the system perfectly vertical.

• Light yet tough: only ~38 g, built to handle field use.

Materials & Finish:

• Aviation aluminum.

• Hardcoat anodizing, black.

• Stainless-steel mounting screws with reinforced coating.

• High-quality bubble vial.

Compatibility & Installation:

• For the DKM interface on BGN ARMO mounts (series M / S / VL).

• Secured with a screw; recommended torque: 2 N·m (~19.5 kg·cm).

• Works on either side (right/left) depending on mount configuration.

Specifications:

• Weight: ~38 g

• Type: Flip-out bubble level for DKM-interface one-piece mounts

In the box:

• BL4 level

• Mounting screw(s)