5KU MP5 / MP5K Low Profile Mount

The 5KU MP5 / MP5K Low Profile Mount is a CNC-machined aluminium optic mount that allows you to fit an MP5 or MP5K airsoft replica with a Picatinny top rail. The mount is positioned low above the receiver, meaning that a red dot sight, reflex sight or other suitable Picatinny accessory remains closer to the replica than with many taller MP5 mounts.

The design utilises the characteristic mounting points on the MP5 receiver and therefore requires no permanent modifications to the replica. This makes the mount an attractive option for players who wish to fit the classic MP5 platform with modern optics, whilst keeping the setup compact and relatively neat.

Low-profile mount for the MP5 and MP5K

A key advantage of this 5KU mount is its low mounting height. This means the sight sits closer to the top of the receiver. This results in a compact profile and prevents a relatively small red dot sight from protruding unnecessarily high above the replica.

With an MP5 or MP5K, this is particularly interesting due to the distinctive shape of the platform. A high-profile optic mount can quickly make the entire replica look a lot bulkier, whereas this low-profile version is specifically designed to keep the additional rail as close to the receiver as possible.

Full-length Picatinny rail for optics

On the top there is an extended Picatinny rail onto which suitable sights and accessories can be mounted. This means you are not restricted to one specific type of red dot sight or fixed mounting position, but can position the optic in various positions along the rail.

The mount is particularly suitable for compact red dot sights and reflex sights, but can in principle be used with other accessories that feature a suitable Picatinny rail. Please bear in mind the available space and the dimensions of the chosen accessory.

CNC-machined aluminium structure

5KU manufactures the mount from CNC-machined aluminium. This ensures that the structure remains relatively light whilst providing a sturdy base for mounting an optic.

For airsoft use, this is a logical choice of material. After all, an optic mount should not add any unnecessary weight to the replica, but it must be sufficiently rigid to remain firmly in place during normal use.

Claw mounting without permanent modification

The mount is attached to the appropriate MP5-style mounting points on the receiver. The claws are secured with screws, and the mount features positioning recesses that help to align the mounting points correctly.

As a result, it is not normally necessary to drill into the receiver or make any permanent modifications. This is particularly useful if you wish to restore the replica to its original configuration at a later date.

Compatible with various MP5 platforms

The 5KU MP5 / MP5K Low Profile Mount is designed for various CYMA, Umarex/VFC and Tokyo Marui MP5 and MP5K airsoft replicas with suitable MP5 mounting points. Depending on the platform in question, AEG, GBB and certain NGRS models are supported.

When it comes to airsoft, it is always wise to check the mounting points before purchasing. Receivers and mounting points may vary slightly depending on the manufacturer, generation and model. Therefore, the designation ‘MP5’ or ‘MP5K’ alone is no absolute guarantee that every replica will have exactly the same dimensions.

Ideal for a red dot sight on an MP5

One of the most obvious applications is fitting a red dot sight. The classic MP5 does not come fitted with a modern full-length Picatinny top rail as standard, so an additional mount is required if you wish to use a Picatinny-compatible optic.

This 5KU mount allows a modern red dot sight to be fitted without replacing the replica’s entire front end or receiver. This means that the MP5’s distinctive appearance is largely retained, whilst the replica is made compatible with modern sights.

Practical insights

The 5KU MP5 / MP5K Low Profile Mount is particularly useful if you’re looking for a simple and compact way to attach an optic to an MP5 platform. Fit the mount evenly and, before attaching an optic, check that all mounting points are correctly engaged around the receiver. You should not overtighten the screws; it is more important to tighten them securely and evenly.

After the first day of play, check that all fastenings are still secure. Vibrations, transport and intensive use can affect screw connections. Please also bear in mind that the final height of the sight is determined not only by this low-profile mount, but also by the mounting base of the optic itself.

Who is the 5KU MP5 / MP5K Low Profile Mount suitable for?

The 5KU MP5 / MP5K Low Profile Mount is suitable for airsoft players who wish to fit their compatible MP5 or MP5K with a Picatinny rail for a red dot sight or other suitable sighting device. The low-profile design is particularly appealing to players who want a compact setup and do not wish to fit a large, raised rail assembly on top of their replica.

This mount is also an interesting upgrade for MP5 builds where the classic look needs to be combined with modern accessories. Thanks to the claw-style attachment, functionality can be expanded without permanently modifying the receiver.

Specificaties

• Note: 5KU
• Model: MP5 / MP5K Low Profile Mount
• Producttype: Optic / scope mount
• Platform: MP5 / MP5K
• Material: Aluminium
• Manufacturing: CNC-machined
• Railtype: Picatinny
• Rail configuration: Extended top rail
• Montageprofiel: Low profile
• Bevestiging: MP5-style claw mount
• Positioning cut-outs: Yes
• Permanent modification required: Not normally required
• Compatibility: CYMA MP5 / MP5K
• Compatibility: Umarex / VFC MP5 / MP5K
• Compatibility: Tokyo Marui MP5 / MP5K models with suitable mounting points
• Suitable for AEG: Yes, depending on the model
• Suitable for GBB: Yes, depending on the model
• Suitable for NGRS: Certain compatible Tokyo Marui models
• Colour: Black

Common mistakes

• Don’t rely solely on the name ‘MP5’ or ‘MP5K’. Check that the receiver actually has the correct MP5-style mounting points.
• Do not tighten the fixing screws to their maximum tightness one by one straight away. First align the mount correctly, then tighten the fixings evenly.
• Only fit an optic once you have checked that the rail is securely and straightly attached to the receiver.
• Don’t expect every red dot sight to automatically have the same elevation. The optic’s mounting base also helps determine the final height.
• Do not use the rail as a handle to lift the entire replica.
• Check the fastenings again after the first few uses, particularly if the replica is used intensively or transported.
• Do not automatically assume full compatibility with non-standard MP5 clones; minor differences in receiver dimensions may affect the fit.

Frequently Asked Questions

What is the 5KU MP5 / MP5K Low Profile Mount used for?
The mount adds a Picatinny rail to the top of a compatible MP5 or MP5K airsoft replica. This allows, for example, red dot sights and other suitable Picatinny accessories to be fitted.

Is this mount suitable for CYMA MP5 replicas?
Yes, the mount is specifically designed for compatible CYMA MP5 and MP5K models. However, for other variants, always check the mounting points on the receiver.

Does the mount fit Umarex/VFC MP5 replicas?
Yes, compatible Umarex/VFC MP5 and MP5K models are supported.

Is the mount also suitable for Tokyo Marui?
Yes, the 5KU-420 is also available for compatible Tokyo Marui MP5 and MP5K platforms, including certain AEG and NGRS models. The exact fit depends on the model.

Can I mount a red dot sight on this?
Yes. The Picatinny top rail is ideal for a red dot sight with a compatible Picatinny mounting base.

Do I need to drill holes in my MP5 to fit this mount?
Not normally. The mount uses the existing MP5-style mounting points on a compatible receiver.

Why choose a low-profile mount?
A low-profile mount keeps the optic closer to the receiver. This keeps the overall assembly more compact and means the sight protrudes less high above the replica.

Is the mount made of plastic?
No. The 5KU mount is made from CNC-machined aluminium.

Can I fit other accessories as well as a red dot?
Yes, provided the accessory uses a compatible Picatinny rail and is suitable, in terms of dimensions and intended use, for mounting on top of the replica.

The 5KU MP5 / MP5K Low Profile Mount is a compact CNC-machined aluminium upgrade designed to add a Picatinny top rail to a compatible MP5 or MP5K, ideal for a sleek red dot setup without an unnecessarily high mount.