LAMBUL VISM PRO Flip-Up Red Dot Sight, 20 mm Rail and GLK Mount Options

Add a compact flip-up aiming optic to a compatible slide or rail setup with this LAMBUL VISM PRO red-dot sight. The source lists a folding lens system, 1X magnification, 3 MOA red- or green-dot variants, and multiple options with or without 20 mm rail or GLK mounting hardware.

Product Overview

This optic is listed for slides machined to accept RM-style red-dot sights and is also offered with mounting configurations for a 20 mm Picatinny rail or a GLK rear-sight slot. Confirm the cut, slot, rail, and selected mount before ordering. Red-dot color is selected by variant and cannot be switched between red and green on the same unit.

Key Features

• Flip-up red-dot sight design
• 1X magnification listed
• 3 MOA red- or green-dot options
• Red and green display variants cannot be switched between colors
• Folding lens system deploys with a lever according to the source
• Automatic shutdown when locked in the down position according to the source
• CR2032 battery powered, with one battery listed as included
• Seven daytime and three night-vision brightness levels listed
• Multi-layer coated glass
• 6063 aluminum alloy main body listed
• 20 mm Picatinny rail bracket and GLK base options shown

Product Specifications

• Brand: LAMBUL
• Model: RM VISM PRO Flip Up Red Dot Sight
• Function listed: Red dot
• Magnification: 1X listed; the structured field also shows “≤6,” which should be confirmed
• Reticle: 3 MOA
• Reticle options: Red film or green film
• Battery: CR2032
• Brightness: Seven daytime levels plus three night-vision levels listed
• Glass: Multi-layer coated glass
• Main material: 6063 aluminum alloy
• Net/gross weight listed: 43 g / 215 g
• Mounting: 20 mm Picatinny rail bracket and universal GLK mount options shown
• Origin listed: Mainland China

Available Options

The visible option labels include RM BK(RD)-Mount, RM BK(RD), VISM PROpic(GN)Mount, VISM PRO BK(GN)Mount, VISM PROpic(RD)Mount, VISM PRO BK(RD)Mount, VISM PRO pic(GN), VISM PRO BK(GN), VISM PRO pic(RD), VISM PRO BK(RD), VISM pic(RD) - Mount, VISM BK(RD) - Mount, VISM pic(RD), VISM BK(RD), and Mount. Because the source uses abbreviated option names, confirm the reticle color, housing version, and whether a mount is included before checkout.

Package Details

The supplied description lists a rubber cover, lens-cleaning cloth, 20 mm bracket, and multifunctional GLK base plate. Exact included accessories may depend on the selected option, so confirm the package for the variant you choose.

Compatibility and Setup

• Confirm that your slide is machined for an RM-style red-dot footprint if you are using a slide mount.
• For GLK-related setups, check the rear-sight slot carefully because the source warns that GLK versions and replicas vary.
• For rail mounting, confirm that your equipment uses a compatible 20 mm Picatinny rail.
• Verify whether the selected option includes the needed mount. Some option labels include “Mount,” while others do not.
• After installation, follow the manufacturer’s instructions for secure mounting and sight adjustment. Confirm the optic is firmly attached before use.

Before You Buy

• Choose red or green reticle color carefully. The source says the colors cannot be switched between red and green.
• Check the exact footprint, rear-sight slot, or rail compatibility before ordering.
• Confirm whether your selected option includes a GLK base, Picatinny bracket, or no mount.
• Confirm the listed magnification because the source says 1X in the detailed description but shows “≤6” in a structured field.
• Use the included CR2032 battery specification as a reference, and verify battery condition on arrival.
• Follow all applicable laws, range rules, and safe firearm-handling practices. This product is an aiming accessory, not a substitute for training or a secure installation.

Frequently Asked Questions

What magnification does it have?

The detailed source lists 1X magnification. A separate structured field shows “≤6,” so confirm the specification with the seller if magnification matters.

What reticle colors are available?

Red and green variants are shown. The source says the reticle color cannot be switched between red and green on the same unit.

What battery does it use?

It uses one CR2032 battery, which the source lists as included.

Does it fit a 20 mm rail?

A 20 mm Picatinny rail bracket option is shown. Confirm that your rail and selected variant are compatible.

Does it fit a GLK rear-sight slot?

GLK base and mount options are shown, but the source specifically advises checking the rear-sight slot because GLK versions and replicas differ.

Is a mount included?

Some visible option labels include “Mount,” while others do not. Confirm the exact package for your selected option.